Teaching and Group Activities for Understanding
Day 1 Teaching
Use 5 jumps of 7 and 7 jumps of 5 along a 0-50 beaded line to show that these come to the same place. Then show an array of 5 rows of 7 cubes and turn it round to be 7 rows of 5 cubes. Stress commutativity.
Group Activities
-- Exploring arrays and writing corresponding number sentences.
Day 2 Teaching
Revise 2x table and focus on division, stressing that 12 x 2 = ? is one way of learning the fact and another is ? x 2 = 24: how many 2s in 24? Use ITP Number Grid; highlight multiples of 2, asking division questions.
Group Activities
Use the 'Make the Multiples' in-depth problem-solving investigation below as today’s group activity.
Or, use these activities:
-- Finding out how many 2s are in a number using jumps and beaded lines as well as calculating.
Day 3 Teaching
Write 35, 24, 42, 95, 46, 50, 102, 105, 120 and 125 on the IWB on separate cards. Draw 3 intersecting sets labelled ‘multiples of 2’, ‘multiples of 5’ and ‘multiples of 10’. Discuss how to allocate each number.
Group Activities
-- Playing games exploring multiples of 2, 5, and 10 (as appropriate).