Design and technology
Technical drawing practice grid
Practise drawing block forms on isometric dots, then project a corner block into a plan, front view and right-side view. The instructions distinguish a not-to-scale practice grid from a dimensioned third-angle exercise from the same object.
Compare the three supplied isometric models. The numbers count spaces between dots; use the worksheet for the drawing directions.
Read the complete materialRead the material
Practise drawing block forms on isometric dots, then project a corner block into a plan, front view and right-side view. The instructions distinguish a not-to-scale practice grid from a dimensioned third-angle exercise from the same object.
Complete resource. Use the preview for diagrams and layout.
Page 1
LEARNING GOAL Draw 3D objects in isometric, then show them as third-angle views. SUCCESS CRITERIA I can draw edges only up, 30° left and 30° right. I can copy and design shapes on isometric dots. I can lay out a plan, front view and right view in third angle. 30° 30° 30° 30° UP UP RIGHT RIGHT LEFT LEFT no flat (horizontal) edges no flat (horizontal) edges 1 Start at the lowest corner, on a dot. 2 Draw the nearest vertical edge, then the two 30° bottom edges. 3 Add the other verticals and top edges. Start each copy at its lettered dot. The numbers count spaces between dots. A · CUBOID 3 2 2 B · L-SHAPE 3 2 3 C · THREE STEPS 2 3 3 Imagine a shape made of 4 to 8 cubes. Draw it, then shade the top faces lightly. GO FURTHER Draw Model C turned round, so the steps rise to the left. Technical drawing practice grid DRAWN BY CLASS DATE SCALE Not to scale Sheet 1 of 3 DESIGN AND TECHNOLOGY AGES 12 TO 15 ISOMETRIC DRAWING Technical drawing practice grid Technical drawing practice grid Draw solid shapes on isometric dots, then turn a block into flat views. 1 Three directions only 2 Copy the three models PART A 3 marks COPY GRID: ISOMETRIC DOTS A B C 3 Draw your own 2 marks DESIGN GRID
Page 2
50 50 30 30 10 10 30 30 20 20 20 20 F R P F Front view R View from the right P Plan, from above Sizes in mm. One dot space is 10 mm. VIEW CIRCLE TWO SIZES IN MM Front view width depth height × Plan width depth height × From the right width depth height × THIRD-ANGLE LAYOUT The plan is drawn above the front view. The view from the right is drawn to the right of the front view. 1 Front view: start at its dot. Draw what you see from F, full size. 2 Plan: project thin lines up from every corner. Draw the depth upwards from the dot. 3 From the right: project heights across. Take depths across to the 45° line, then down. 4 Go over the edges with a dark, thick line. Keep projection lines thin. Edge: thick, dark Projection line: thin, light 45° 45° Start Start Start Start Start Start PLAN PLAN FRONT VIEW FRONT VIEW VIEW FROM THE RIGHT VIEW FROM THE RIGHT Technical drawing practice grid PROJECTION Third angle SCALE 1:1 DRAWN BY Sheet 2 of 3 DESIGN AND TECHNOLOGY AGES 12 TO 15 ORTHOGRAPHIC PROJECTION Draw the corner block in third angle Draw the corner block in third angle 4 Meet the corner block 5 Sizes in each view 3 marks 6 Draw the three views THIRD ANGLE 9 marks
A teaching sequence
Use vertical and 30-degree isometric directions to draw solid forms, organise orthographic views in third-angle layout and explain what the views show.
Compare the three supplied isometric models. The numbers count spaces between dots; use the worksheet for the drawing directions.
Read the complete materialCopy models through dot spaces
Copy the cuboid, L-shape and three-step models by counting dot spaces from the indicated start. Keep verticals and the two diagonal directions consistent.
Are vertical and both diagonal directions consistent with the model?
Design a four-to-eight-cube object
Design a simple object made from four to eight cubes and lightly shade its top faces. Try the further prompt by turning the step model.
Which faces are the top faces in your drawing?
Lay out front, plan and right views
For the corner block, use the provided front, plan and right-view directions. Draw the plan above the front view and the right-side view to its right.
Are plan above front and right view to its right in the printed third-angle layout?
Project, darken edges and check dimensions
Project thin construction lines, use the 45-degree transfer line as instructed and make visible edges darker once the views align. Record dimensions in millimetres and check that corresponding widths, depths and heights agree across the views.
Do corresponding dimensions agree in millimetres after printed scale is checked?
Before you teach
Look for the thinking behind an answer, choose the support your class needs and leave room for an independent response.
What to look for
Check that the isometric edges follow the stated directions and that the orthographic views line up and preserve the stated dimensions. Ask pupils to explain which faces can be seen from each labelled viewpoint.
Give a little support
Use a block model and rotate it to match the views. Provide a ruler, a single starting dot and light guide lines; let pupils complete one view at a time before drawing all three.
Take the idea further
Ask pupils to design another block shape and draw its three views, then exchange with a partner to see whether the views are sufficient to reconstruct the object.
Things to keep in mind
The first isometric task is explicitly not to scale; the dimensioned orthographic exercise is labelled scale 1:1. Follow the stated dot spacing and millimetre units. Verify printed size with a ruler before measuring accurately.
Keep the idea. Make it yours.
Bring your topic, learning goal and class context to PLAI™, then review what you create.
Ideas to try with your class
Sample teaching perspectives on what to try, what to adapt and what to watch for.
Meet The Creators
Meet the creators whose teaching interests connect with this template. Find an approach to try with your class.
Nathan Boateng
When something does not stand up or function as intended, we can ask why, identify a constraint and try another solution.
Meet the creatorPatrick Nkemelu
I use clear scoring rubrics for design-and-build challenges, making criteria visible in advance so student judges can compare entries fairly while allowing different ideas and solutions.
Meet the creator
Clear Example
This two-page technical drawing sheet asks pupils to construct solid forms using vertical and 30-degree isometric directions, then lay out plan, front and right views in third angle. The success criteria specify the directions and view arrangement.
After the Bell
The grid links a three-dimensional sketch to orthographic views, helping pupils represent the same object in two ways. Starting at the lowest corner gives a clear construction point.
Extra Page
Model the vertical and two 30-degree edges on the dot grid, then check that pupils use the key consistently. Compare the plan and front views to the same solid before adding detail.
One Last Sticky Note
The grid practises the stated conventions and may not cover all technical drawing standards. Confirm the projection method required by the course and check dimensions against the intended object.