Sam makes the following error: 18 3 = 21. His problem is an error in
a. the wrong process.
b. computation facts.
c. place value.
d. working from left to right.
e. not lining up the problem.
Question 2
Studies of the mathematics textbook series used in general education classes show that for students with
mathematics disabilities, the math books
a. present concepts at an appropriate rate.
b. present concepts too rapidly.
c. provide enough review.
d. provide enough guided practice.
e. present concepts too slowly.