by robdolphin | Aug 5, 2023 | 2D Shape, Angles, Area, Length & Distance, Measurement, Pdf Open-ended Guided Explorations, Pdfs, Polygons, Quadrilaterals, Symmetry, Triangles

An umbrella investigation stimulating a wide variety of explorations into 2-D shapes. Depending on the lines of enquiry that develop, you can then use material from related investigations such as Properties of quadrilaterals, Constructing polygons, Angles in...
by robdolphin | Apr 19, 2023 | 2D Shape, Area, Counting, Google Slide Activities, Google Slide Extended Explorations, Length & Distance, Measurement, Multiply & Divide, Rounding, Volume

This is an open-ended extended exploration designed to be used over multiple weeks. Each section builds on the learning from the previous one but is does not need all to be completed at once. It begins with measuring packets of food from the store cupboard, moves on...
by robdolphin | Apr 15, 2023 | Area, Length & Distance, Measurement, Pdf Open-ended Guided Explorations, Pdfs, Pythagoras, Resources, Shapes and Angles, Triangles

Have fun making this simple puzzle which very beautifully illustrates Pythagoras’ Theorem that the sum of the squares on two sides of a right-angled triangle = the square on the third side. Make and solve the puzzle and then through measuring areas discover...
by robdolphin | Apr 15, 2023 | 2D Shape, Area, Length & Distance, Measurement, Pdf Open-ended Guided Explorations, Pdfs, Perimeter, Quadrilaterals, Resources, Shapes and Angles, Triangles

You may be able to calculate the perimeters and areas of a rectangle and a triangle, but can you explain why the formulas work? Build on this to explore other quadrilaterals: rhombus, kite, trapezium and parallelogram....