Follow-up A · build matched groups
Use this after your teacher has chosen the complete-group route. Drawings work; counters are optional.
RR02-R1 · Targeted follow-up A
A model uses 2 triangle counters for every 3 circle counters. Sketch three complete groups. Count both totals. Does 6 triangles with 7 circles meet the rule? Explain.
Follow-up B · explain the shared factor
Use this after your teacher has chosen the factor-explanation route.
RR02-R2 · Targeted follow-up B
A pattern uses 4 square tiles for every 7 round tiles. A larger pattern has 21 round tiles. Find the square tiles. Show the factor in both quantities and explain it in words.