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## Calculating perimeter using centimetres

• Calculating perimeter using centimetres
• Course: Mathematics
• Section: Length
• Outcome: Perimeter of irregular shapes.
• Activity Type: Printable
• Activity ID: 4276

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#### United Kingdom – National Curriculum expand/collapse

• ##### KS2.Ma2 – Number and algebra
• Knowledge, skills and understanding

• Solving numerical problems

• KS2.Ma2.4 – Pupils should be taught to:

• KS2.Ma2.4.a – Choose, use and combine any of the four number operations to solve word problems involving numbers in 'real life', money or measures of length, mass, capacity or time, then perimeter and area

• Using and applying number

• KS2.Ma2.1 – Pupils should be taught to:

• Problem solving

• KS2.Ma2.1.a – Make connections in mathematics and appreciate the need to use numerical skills and knowledge when solving problems in other parts of the mathematics curriculum

• ##### KS2.Ma3 – Shape, space and measures
• Knowledge, skills and understanding

• Understanding measures

• KS2.Ma3.4 – Pupils should be taught to:

• KS2.Ma3.4.e – Find perimeters of simple shapes; find areas of rectangles using the formula, understanding its connection to counting squares and how it extends this approach; calculate the perimeter and area of shapes composed of rectangles.

• Using and applying shape, space and measures

• KS2.Ma3.1 – Pupils should be taught to:

• Problem solving

• KS2.Ma3.1.b – Select and use appropriate calculation skills to solve geometrical problems

#### Australia – Australian Curriculum expand/collapse

• ##### Measurement and Geometry
• Using units of measurement

• ACMMG084 – Use scaled instruments to measure and compare lengths, masses, capacities and temperatures

• ##### Measurement and Geometry
• Using units of measurement

• ACMMG109 – Calculate the perimeter and area of rectangles using familiar metric units

• ##### Measurement and Geometry
• Using units of measurement

• ACMMG137 – Solve problems involving the comparison of lengths and areas using appropriate units

#### New Zealand – National Standards expand/collapse

• ##### 5.GM – Geometry and measurement
• 5.GM.1 – Measure time and the attributes of objects, choosing appropriate standard units and working with them to the nearest tenth

• ##### 7.GM – Geometry and measurement
• 7.GM.3 – Use side or edge lengths to find the perimeters and areas of rectangles and parallelograms and the volumes of cuboids, given whole-number dimensions

#### United States – Common Core State Standards expand/collapse

• ##### 3.MD – Measurement & Data
• Mathematics

• 3.MD.8 – Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.

• ##### 4.MD – Measurement & Data
• Mathematics

• 4.MD.3 – Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.