Before students begin work on the Triangles task, they have a whole group discussion about what does the task asking them to complete/do. Students share ideas on approaches and what might be confusing as they proceed.
Establish Mathematics Goals to Focus Learning
Two students share their methods for solving the Growing Dots task, one describing recursive thinking (x + 4) and the other presenting an explicit expression (x4 + 1).
After having worked individually to predict the number of faces for a line of 10 connected cubes, the class discusses their predictions attending to two particular student methods–one using repeated addition and the other using multiplication.