Have students turn to discuss what patterns they notice in the chart for finding the number of cubes for ½ in and â in cubes and how they can use that to find how many ¼ cubes would be needed to make a 1in x 1in x 1in.Again, if students are struggling to make this connection ask them, “What do you notice about the side lengths?” Ask, “Why does it take 27 one-third inch cubes to make a 1x1x1?” (Because 3 x 3 x 3 = 27). Once all students have figured out it will take 27 cubes, stop the class and fill in the chart and have a discussion.Guide them back to their knowledge of fractions. Help guide students that it would take 3- â inch cubes to make a whole. If this happens, tell them our goal is to make a cube. The teacher should go around and guide any misconceptions such as creating a 2 x 3 x 2. Ask, “How many cubes would you need to make a 1in x1in x1in?” Allow students to make predictions and then ask them to prove it using the cubes.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |