Year 3 · Spring term · weeks 4 to 6 · Measurement
Year 3 Length and perimeter worksheets
Year 3 Length and perimeter is taught in the Spring term, weeks 4 to 6. This block has 12 steps: Measure in metres and centimetres; Measure in millimetres; Measure in centimetres and millimetres; Metres, centimetres and millimetres; Equivalent lengths (metres and centimetres); Equivalent lengths (centimetres and millimetres); Compare lengths; Add lengths; Subtract lengths; What is perimeter; Measure perimeter; Calculate perimeter.
Steps in this block
Step 1: Measure in metres and centimetres
Measure lines in centimetres with a ruler, choose the best unit and use 100 centimetres in a metre.
Step 1 · not scaffolded sheet with answersStep 2: Measure in millimetres
Measure short lines in millimetres with a ruler and convert between centimetres and millimetres.
Step 2 · not scaffolded sheet with answersStep 3: Measure in centimetres and millimetres
Measure lines in centimetres and millimetres and write the length in both ways.
Step 3 · not scaffolded sheet with answersStep 4: Metres, centimetres and millimetres
Choose between metres, centimetres and millimetres and compare the three units.
Step 4 · not scaffolded sheet with answersStep 5: Equivalent lengths (metres and centimetres)
Change between metres and centimetres, including lengths such as 3 m 50 cm.
Step 5 · not scaffolded sheet with answersStep 6: Equivalent lengths (centimetres and millimetres)
Change between centimetres and millimetres, including lengths such as 6 cm 4 mm.
Step 6 · not scaffolded sheet with answersStep 7: Compare lengths
Compare lengths given in different units and put them in order.
Step 7 · not scaffolded sheet with answersStep 8: Add lengths
Add lengths in centimetres, millimetres and metres, and write the answer in the unit asked for.
Step 8 · not scaffolded sheet with answersStep 9: Subtract lengths
Subtract lengths in centimetres, millimetres and metres, and find how much longer or shorter one length is.
Step 9 · not scaffolded sheet with answersStep 10: What is perimeter
Find the perimeter of shapes on a grid by counting the lengths of the edges all the way round.
Step 10 · not scaffolded sheet with answersStep 11: Measure perimeter
Measure the sides of shapes with a ruler and add them to find the perimeter.
Step 11 · not scaffolded sheet with answersStep 12: Calculate perimeter
Calculate the perimeter of rectangles, squares and other shapes from the lengths of their sides.
Step 12 · not scaffolded sheet with answersHow to use this block
Work through the steps in order. For each step, start the class on the Expected sheet and give Developing or Greater depth sheets where needed. Every worksheet has a separate answer sheet, so children can mark their own work or you can mark it with a marks column. Use the Make a sheet page, or the teacher guide, if you want to know more.