There is a big difference between telling me which numbers you added and what those numbers represent.
During the second year, the bakery sold 5,000 more bags than were sold in the first year.
Example: During the first year a bakery sold 37,58- bags of cookies.
Using real problems is a way to develop students’ working mathematically skills in communicating, problem solving and reasoning in the classroom. It is important that students can also visualise the problem.
This following problem involves students using their knowledge of multiples and their relationship to each other to solve problems. Tony is paid the same amount for each car he washes. Using Newman’s prompt questions (PDF 41.18KB) while problem solving is a good guiding structure for problems1. Do students see that 15 can be multiplied 3 times to get 45?