- Compares length of two objects with a piece of string.
- Moves finger along a line segment, saying, "10, 20, 30, 31, 32."
- Measures two objects with a ruler to check if they are the same length, but does not accurately set the "zero point" for one of the items.
Help your student become a(n) Length Indirect Comparer
Activities are carefully planned to make the (easier!) direct instruction difficult or impossible, so children are challenged to use a third object (e.g., a piece of string) to compare two others (e.g., width of a heavy table and a doorway). Discussion focuses on transitive inference--if A is longer than B and B is longer than C, then A is longer than C.