Your Basket 0 items - £0.00

Being able to construct plan and elevation drawings of 3D shapes is a key skill which often leads on to topics such as nets, isometric drawings, volume and surface area.

An elevation drawing is the view that you would see in real life as you stand looking at either the front or side of the solid. The plan is what you would see if you were looking directly down. A set of elevation and plan drawings gives you the chance to see all of the object from the multiple viewpoints.

To construct a set of elevation and plan drawings students need to know the properties of a 3D shape and how a solid can be presented on isometric paper.

The starter recaps both of these by asking students to arrange a set of cuboids. The point of the activity is for students to discuss alternative methods of arrangement. By doing this is they remind themseleves of the various properties of a solid. How they arrange the cuboids is left open. Some choose to arrange by volume, surface area or area of cross-section.

To create a set of plan and elevation drawings of 3D shapes it is important to lay out the front, side and plan views so they align with each other. The height of the front should align with the height of the side and the width of the plan should align to that of the front as you can see from the diagram.

When the students practise drawing the front and side elevations and plan view I ask them to draw sketches on mini-whiteboards rather than attempting accurate constructions. This helps maintain the pace of the lesson as time is not wasted with handing out rulers, sharpeners, pencils and so on…

When students can accurately sketch the plan and elevations I hand out a collection of objects either bought from home or found in school.

t

I ask the students to construct the elevation and plan drawings as accurately as possible in their books. Each table gets a different object and they pass it on to the next pair when finished.

In the plenary the class are challenged to sketch a multi-coloured 3D object from its plan and elevation drawings.

I hand out a set of colours and isometric paper so students can present their work to me and each other at the end. Students tend to really enjoy this plenary as it reverses what they have just learned.

June 5, 2019

Students should be able to represent the solutions to an inequality on a number line, using set notation or as a list of integer values. Here’s how I teach using the balance method for solving inequalities using a number line. Matching inequalities, Number sets and Number Lines At the start of the lesson students recap […]

May 1, 2019

In this blog I will share some practical tips for using mini-whiteboards in a mathematics lesson. I use mini-whiteboards nearly every lesson because they help the students show me the progress they are making. When I understand what the misconceptions are I am able to address them in subsequent examples as part of my feedback. […]

April 17, 2019

Demonstrating student progression during a mathematics lesson is about understanding the learning objective and breaking that down into explicit success criteria. Using Success Criteria Take, for example, a lesson on calculating the area of compound rectilinear shapes. The intended learning objective was written on the main whiteboard. Success criteria were used to break down the individual […]