# .css-1lrpez4{margin-top:unset;}.css-1lrpez4:hover > span,.css-1lrpez4:focus-within > span{opacity:1;-webkit-transform:none;-ms-transform:none;transform:none;-webkit-transform-duration:0.1s;-ms-transform-duration:0.1s;transform-duration:0.1s;}perimeter.css-14vda7h{font-size:15px;margin-inline-start:0.5rem;opacity:0;position:absolute;-webkit-transform:translateX(-4px);-ms-transform:translateX(-4px);transform:translateX(-4px);-webkit-transition:opacity 0.2s ease-out 0s,-webkit-transform 0.2s ease-out 0s;-webkit-transition:opacity 0.2s ease-out 0s,transform 0.2s ease-out 0s;transition:opacity 0.2s ease-out 0s,transform 0.2s ease-out 0s;}

 sample Q from each layer teach-learn questions layer 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 practise-learn worksheets print hints d/s 2pp d/s 2pp d/s 2pp d/s 2pp d/s 2pp other perimeter.mp4perimeter and area.notebook

### NC information

National curriculum code and descriptions (partially) covered by the layers.

G4 derive and apply the properties and definitions of special types of quadrilaterals, including square, rectangle, parallelogram, trapezium, kite and rhombus; and triangles and other plane figures using appropriate language

G14 use standard units of measure and related concepts (length, area, volume/capacity, mass, time, money, etc.)

G17 know the formulae: circumference of a circle = 2πr = πd, area of a circle = πr2; calculate: perimeters of 2D shapes, including circles; areas of circles and composite shapes; surface area and volume of spheres, pyramids, cones and composite solids

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