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Perimeter - Crack the Code
4 5 Pre & Primary Essentials Worksheets Mathematics Measurement Geometric Reasoning 4 Pages

Perimeter - Crack the Code

This fun resource puts a spin on learning about perimeter. Students use their growing perimeter knowledge to work out the answer to the two questions displayed on each side of this worksheet. Essentially, students calculate the perimeter of each shape, record the answers and locate the corresponding answer to record the letter which cracks the code (the answer!) 
Encourage students not to share the answer until all students have had a go. Both pages have answer sheets.

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Learning goals

  • We are learning to calculate perimeter and area of rectangles using familiar metric units.
  • We are learning to solve practical problems involving the perimeter and area of regular and irregular shapes using appropriate metric units.
  • We are learning to use scaled instruments to measure length, mass, capacity, duration and temperature.
  • We are learning to use scaled instruments to measure length, mass, capacity and temperatures.
  • We are learning to compare the perimeter and area of shapes, counting appropriate formal and informal units.

Curriculum alignment

MA3-1WM old Describes and represents mathematical situations in a variety of ways using mathematical terminology and some conventions MA3-3WM old Gives a valid reason for supporting one possible solution over another MA3-9MG old Selects and uses the appropriate unit and device to measure lengths and distances, calculates perimeters, and converts between units of length MA3-10MG old Selects and uses the appropriate unit to calculate areas, including areas of squares, rectangles and triangles MA2-12MG old Measures, records, compares and estimates the masses of objects using kilograms and grams MA2-11MG old Measures, records, compares and estimates volumes and capacities using litres, millilitres and cubic centimetres MA2-1WM old Uses appropriate terminology to describe, and symbols to represent, mathematical ideas MA2-2WM old Selects and uses appropriate mental or written strategies, or technology, to solve problems MA2-3WM old Checks the accuracy of a statement and explains the reasoning used MA2-9MG old Measures, records, compares and estimates lengths, distances and perimeters in metres, centimetres and millimetres, and measures, compares and records temperatures MA2-10MG old Measures, records, compares and estimates areas using square centimetres and square metres MA2-MR-01 new Represents and uses the structure of multiplicative relations to 10 × 10 to solve problems MA2-2DS-03 new Estimates, measures and compares areas using square centimetres and square metres MA2-MR-02 new Completes number sentences involving multiplication and division by finding missing values MA2-PF-01 new Represents and compares halves, quarters, thirds and fifths as lengths on a number line and their related fractions formed by halving (eighths, sixths and tenths) MA2-GM-01 new Uses grid maps and directional language to locate positions and follow routes MA2-GM-02 new Measures and estimates lengths in metres, centimetres and millimetres MA2-GM-03 new Identifies angles and classifies them by comparing to a right angle MA2-2DS-01 new Compares two-dimensional shapes and describes their features MA2-2DS-02 new Performs transformations by combining and splitting two-dimensional shapes MA2-3DS-01 new Makes and sketches models and nets of three-dimensional objects including prisms and pyramids MA2-3DS-02 new Estimates, measures and compares capacities (internal volumes) using litres, millilitres and volumes using cubic centimetres MA2-NSM-01 new Estimates, measures and compares the masses of objects using kilograms and grams MA2-NSM-02 new Estimates, measures and compares the masses of objects using kilograms and grams MA3-AR-01 new Selects and applies appropriate strategies to solve addition and subtraction problems MA3-GM-02 new Selects and uses the appropriate unit and device to measure lengths and distances including perimeters MA3-2DS-02 new Selects and uses the appropriate unit to calculate areas, including areas of rectangles MA3-2DS-03 new Combines, splits and rearranges shapes to determine the area of parallelograms and triangles
VCMMG169 Compare the areas of regular and irregular shapes by informal means VCMMG166 Compare objects using familiar metric units of area and volume VCMMG165 Use scaled instruments to measure and compare lengths, masses, capacities and temperatures VCMMG196 Calculate the perimeter and area of rectangles and the volume and capacity of prisms using familiar metric units

Australian Curriculum covers QLD / SA / WA / NT / TAS / ACT.

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