AI Image Generator for Teachers

Photograph the diagram you drew on the board or in an exercise book and attach it. Get back a clean labelled diagram, a worksheet or a poster for the wall.

A flat cream diagram titled The water cycle: a red sun, cyan sea, cloud with rain, a grey hill with two trees, and arrows labelled with the six processesDiagram
A flat cream diagram titled Inside a volcano: a striped cone with a red magma chamber, vents and lava flow under a black ash cloud, seven labels on leader lines
A generated phone photo of a squared exercise book on a grey desk: a pencil and biro volcano cross-section titled Volcano, underlined in red, with seven handwritten labels from ash cloud to magma chamber and a black pen beside itSketch
A Year 8 Science volcano worksheet: the volcano diagram with seven numbered empty label boxes, a word bank and three questionsWorksheet
A flat white diagram titled A plant cell in three greens, its seven parts labelled on leader lines

What is an AI image generator for teachers?

Turn a lesson description or sketch into a labelled diagram, worksheet, classroom poster or slide. Batch Banana makes four versions by default, so you can choose the clearest one and check its labels before class. One image on GPT Image 2.5 Sunburst costs 30 credits, and you can start for free.

From sketch to worksheet

Turn a sketch into teaching materials

A generated exercise-book sketch becomes a labelled volcano diagram, then a worksheet with numbered answer boxes. Each step uses the previous image as its reference, with the labels written out in the prompt.

  1. A generated phone photo of a squared exercise book on a grey desk: a pencil and biro volcano cross-section titled Volcano, underlined in red, with seven handwritten labels from ash cloud to magma chamber and a black pen beside it

    Example sketch

  2. A flat cream diagram titled Inside a volcano: a striped grey cone with a red magma chamber, main vent, side vent and lava flow, a black ash cloud, and seven labels on leader lines

    Diagram

    GPT Image 2.5 Sunburst30 credits

  3. A Year 8 Science volcano worksheet on white A4: a large numeral 1 beside the volcano diagram with seven numbered empty label boxes, a word bank, and a numeral 2 beside three questions with writing lines

    Worksheet

    GPT Image 2.5 Sunburst30 credits

Teachers

Create visuals for your lesson

  • A diagram for tomorrow's lesson

    The old way

    Search stock sites for one that is close enough, or draw it on the board.

    With Batch Banana

    Take a photo of the board and attach it. Ask for a clean version with the same labels.

  • A worksheet from the diagram

    The old way

    Copy the diagram into a document and cover each label with a box by hand.

    With Batch Banana

    Attach the diagram and ask for numbered boxes on the leader lines, a word bank and your questions.

  • A picture for every word on a list

    The old way

    Hunt for one image per word, one search at a time.

    With Batch Banana

    Import the list into Batch as a CSV. Each row is its own prompt, and they all run at once.

  • A poster for the wall

    The old way

    Find a classroom poster that covers your lesson.

    With Batch Banana

    Quote every word the poster needs, then upscale the one you pick for print.

Try it with tomorrow's lesson

Write what the picture shows and every label it needs, or attach a photo of your sketch. You get four versions to choose from. The diagrams, worksheet, poster and slide here were made on GPT Image 2.5 Sunburst.

One run on GPT Image 2.5 Sunburst: 4 images at 3:4, 120 credits.
Start creating

Free to start

Lesson edits

From your sketch to a clean diagram

GPT Image 2.5 Sunburst redraws these generated whiteboard and notebook photos as diagrams. Each prompt includes the reference photo and a written list of labels.

  • A generated phone photo of a classroom whiteboard with the water cycle drawn in blue and black marker: sea, sun, cloud, rain and a hill with two trees, six handwritten process labels and faint erased writing
    A flat cream diagram titled The water cycle: a red sun, cyan sea, cloud with rain, a grey hill with two trees, and arrows labelled evaporation, transpiration, condensation, precipitation, surface runoff and infiltration

    Whiteboard to diagram

    The water-cycle diagram keeps the six labelled processes and arrows, removing the whiteboard glare and erased writing.

  • A generated phone photo of a lined exercise book: a blue biro plant cell titled Plant cell with green chloroplasts and seven handwritten labels, a green felt-tip pen beside it
    A flat white diagram titled A plant cell in three greens: cell wall, cell membrane, cytoplasm, a large vacuole, nucleus, chloroplasts and two mitochondria, each on a leader line

    Exercise book to diagram

    The plant-cell diagram follows the seven parts in the sketch. One detail needs correction: the nucleus line ends on the nucleolus inside it.

Diagrams, worksheets, posters and slides

Each card shows the prompt, the model and the credits it took. Where a prompt names Image 1, the run had the sketch or the diagram before it attached.

A flat cream diagram titled Inside a volcano: a striped grey cone with a red magma chamber, main vent, side vent and lava flow, a black ash cloud, and seven labels on leader lines

Redraw the teacher's sketch in Image 1 as a clean textbook diagram of a composite volcano in cross-section, keeping the same parts in the same places. Flat shapes, no gradients, no texture, on a warm cream ground, in the style of a contemporary editorial infographic. Three inks: near-black for outlines, leader lines and text; one signal red for the magma chamber, the main vent, the side vent and the lava flow; a pale warm grey alternating with cream for the layers of ash and lava inside the cone, drawn as clean stripes that follow the slopes. The ash cloud above the crater is a flat near-black shape. The magma chamber is a red oval deep below the cone; the main vent rises from it to the crater; the side vent branches off the main vent and breaks out on one slope; the lava flow runs down a slope from the crater. Thin black leader lines end in small dots, each touching its part. Labels in a clean neo-grotesque sans serif, sentence case, spelled exactly: "Ash cloud", "Crater", "Main vent", "Side vent", "Lava flow", "Layers of ash and lava", "Magma chamber". Title top left in bold: "Inside a volcano". No grid paper, no handwriting, no notebook. Generous margins. No other text.

GPT Image 2.5 Sunburst30 credits
A flat white diagram titled A plant cell in three greens: cell wall, cell membrane, cytoplasm, a large vacuole, nucleus, chloroplasts and two mitochondria, each on a leader line

Redraw the teacher's sketch in Image 1 as a clean textbook diagram of a plant cell, keeping the same parts in the same places. Flat vector shapes in three greens and near-black on white, no gradients, no texture, in the style of a contemporary editorial infographic. A rounded rectangle cell: a thick dark olive cell wall, just inside it a thin near-black cell membrane, pale sage cytoplasm, a large central vacuole in very pale green-white bounded by a thin line, a dark olive round nucleus with a darker nucleolus pressed against one side of the vacuole, about ten mid-green oval chloroplasts with fine stacked lines inside spread through the cytoplasm around the edge, and two small near-black bean-shaped mitochondria with a folded inner line. Thin black leader lines end in small dots, each touching its part. Labels in a clean condensed sans serif, sentence case, spelled exactly: "Cell wall", "Cell membrane", "Cytoplasm", "Nucleus", "Vacuole", "Chloroplast", "Mitochondrion". Title top left: "A plant cell". No lined paper, no handwriting, no notebook, no pen. Generous white space. No other text.

GPT Image 2.5 Sunburst30 credits
A Year 8 Science volcano worksheet on white A4: a large numeral 1 beside the volcano diagram with seven numbered empty label boxes, a word bank, and a numeral 2 beside three questions with writing lines

A one-page science worksheet printed on white A4 paper, shown flat and straight on, lying on a pale grey ground with a soft shadow and a thin grey margin around the sheet. Swiss grid layout in black, with the signal red of Image 1 as the only color. Across the top, a thin rule with three small column heads: "Year 8 Science", "Volcanoes", "Name". Section one: a very large thin-stroke black numeral "1" at the left, beside the volcano diagram from Image 1 redrawn in the same style and colors, but every label replaced by an empty rectangle with a small number 1 to 7 on its leader line. Under a thin rule, a word bank on one line: "Ash cloud · Crater · Main vent · Side vent · Lava flow · Layers of ash and lava · Magma chamber". Section two: a very large numeral "2" and three short questions, each followed by two ruled writing lines: "Label the diagram using the word bank." "Where is magma stored before an eruption?" "Why does a composite volcano have layers?" Clean neo-grotesque sans serif throughout. No other text.

GPT Image 2.5 Sunburst30 credits
An orange classroom poster with INSIDE THE EARTH stacked in huge black capitals and 6,371 KM TO THE CENTRE, over a half Earth in black and cream bands labelled crust, mantle, outer core and inner core; the bands are not drawn to scale

A portrait classroom science poster, flat screen-print look in three inks: a saturated signal-orange ground, near-black and cream. Top left, a stacked headline in a heavy condensed grotesque, all caps, very large: "INSIDE THE EARTH", and under it one small line in the same face: "6,371 KM TO THE CENTRE". The lower half: the Earth cut in half, shown as a half circle resting on its flat edge, built from four concentric bands, outside to inside: the crust, a thin near-black band at the very edge; the mantle, a thick cream band; the outer core, a thick near-black band; the inner core, a cream half disc at the centre of the flat edge. Four thin near-black leader lines, each ending in a small dot placed inside the band it names: "CRUST" on the thin outer black band, "MANTLE" in the cream band, "OUTER CORE" in the black band (its dot and the end of its line in cream), "INNER CORE" in the cream centre. The four labels in small heavy condensed caps sit outside the half circle, two on the left and two on the right. Flat, no gradients, no halftone, no texture. Wide clear margins at the top and bottom. No other text.

GPT Image 2.5 Sunburst30 credits
A flat cream diagram titled The water cycle: a red sun, cyan sea, cloud with rain, a grey hill with two trees, and arrows labelled evaporation, transpiration, condensation, precipitation, surface runoff and infiltration

Redraw the whiteboard sketch in Image 1 as a clean textbook diagram of the water cycle, keeping the same parts in the same places. Flat shapes on a warm cream ground, no gradients, no texture, in the style of a contemporary editorial infographic. The sea at the bottom left is pale cyan drawn as fine horizontal lines; the sun is a flat signal red disc at the top left; the hill on the right is a flat pale warm grey shape with two near-black tree silhouettes; the cloud is cream with a near-black outline; the rain is short near-black dashes falling from the cloud onto the hill. Curved near-black arrows: wavy arrows rising from the sea, small arrows rising from the trees, an arrow carrying vapour up to the cloud, an arrow running down the hill surface into the sea, and dashed arrows sinking into the ground under the hill. Labels in a clean neo-grotesque sans serif, sentence case, spelled exactly and placed by their arrows: "Evaporation" over the sea, "Transpiration" by the trees, "Condensation" by the cloud, "Precipitation" by the rain, "Surface runoff" by the arrow down the hill, "Infiltration" by the dashed arrows. Title top left in bold: "The water cycle". No whiteboard, no frame, no markers, no handwriting. Generous margins. No other text.

GPT Image 2.5 Sunburst30 credits
A white 16:9 lesson slide titled Photosynthesis, How a leaf makes glucose: a green leaf with Glucose on it, sunlight, carbon dioxide and water arrows going in and an oxygen arrow coming out

A 16:9 lesson slide on a white ground: a flat vector diagram in three greens and near-black with one yellow accent, no gradients, no texture. Left third: the title "Photosynthesis" in a large clean sans serif, and under it one small line: "How a leaf makes glucose". Centre and right: one large flat leaf in mid green with a dark olive midrib and veins, on a short stalk. A flat yellow sun disc in the top right corner with three straight yellow arrows running from the sun into the leaf; the label "Light" sits beside the sun, outside the leaf. A near-black arrow pointing into the leaf from the left, with "Carbon dioxide" at its tail. A near-black arrow pointing up the stalk into the leaf, with "Water" at its tail below the stalk. A near-black arrow pointing away from the leaf to the right, with "Oxygen" at its head. On the leaf, in white: "Glucose". Every arrowhead points the stated way: light, carbon dioxide and water go into the leaf; oxygen leaves it. Labels in the same sans serif, sentence case, each outside the leaf except "Glucose". Generous negative space. No other text.

GPT Image 2.5 Sunburst30 credits

Model comparison

One labelled diagram on three models

The same prompt with seven labels. GPT Image 2.5 Sunburst and Nano Banana 2.1 put every label on its part. Ideogram 4.5 left out Anther and pointed Sepal, Filament, Style and Ovary at the wrong parts.

Same prompt, every model

A labelled diagram titled "Parts of a flower" for a science lesson: one flower cut in half lengthways, flat shapes on a warm cream ground in three colors, coral pink petals, leaf green sepals and stalk, near-black outlines and text. The carpel stands in the centre with the ovary at its base; stamens stand around it. Thin leader lines to seven labels in a clean sans serif, spelled exactly: "Petal", "Sepal", "Anther", "Filament", "Stigma", "Style", "Ovary". No other text.

  • GPT Image 2.5 Sunburst: Parts of a flower, a coral flower cut in half with yellow anthers and a green carpel, all seven labels on their parts
    GPT Image 2.5 Sunburst

    30 credits

  • Nano Banana 2.1: Parts of a flower, a coral flower cut in half with green stamens and carpel, all seven labels on their parts
    Nano Banana 2.1

    10 credits

  • Ideogram 4.5: Parts of a flower, a coral flower with six labels; Anther is missing and the Sepal, Filament, Style and Ovary lines end on the wrong parts
    Ideogram 4.5

    14 credits

Each result shown is the better of two from one run per model, nothing retouched. Check every label and line before a diagram goes in front of a class.

How it works

  1. Describe what the lesson needs

    Say what the picture shows, who it is for and every word that must appear on it.

  2. Review and refine

    Each run makes four versions. Keep the one that teaches the idea most clearly, and check every label.

  3. Print or project it

    Upscale the one you keep before you print it as a poster, or download it for your slides.

Settings for classroom pictures

Start from these settings in the generator.

Model
GPT Image 2.5 Sunburst, 30 credits per image
Attach
A photo of the board or the exercise book
Aspect ratio
3:4 for posters, 16:9 for slides
Images per run
4

Questions from teachers