Lesson 3

Paper-and-Pencil Division

Est. Class Sessions: 2–3

Summarizing the Lesson

Have students play the Division Digits Game. The directions are in the Student Activity Book. The rules are similar to those in earlier digits games except this time the operation is division. Students can also take the game home to play with family members as homework.

  • What should your explanation include to show that you checked for reasonableness? (It should explain how I estimated, what convenient numbers I used, and what operation I used.)
  • How can you show that you checked your calculations? (Possible responses: I can show how I solved the problem a different way and got the same answer; I can multiply the divisor and the quotient and add the remainder to get the dividend.)
  • How can you show your work? (Possible responses: If I used the column method, I should show my columns; I can do all my figuring right on the quiz paper.)
  • What if you have a remainder? (I should explain what the remainder means in my final answer.)

Tell students to circle Question 2 on the quiz. Question 2 will be reviewed for how well the “reasonableness” of the answer is explained, as well as for whether the answer is correct.

Use the Paper-and-Pencil Division Quiz with Feedback Box to assess students' abilities to show connections between models and strategies for multidigit division [E2]; interpret remainders from division of multidigit numbers [E3]; divide numbers that are multiples of ten [E6]; and divide multidigit numbers by oneand two-digit divisors using paper and pencil [E7].

Use responses to Question 2 to evaluate students' abilities to check for reasonableness [MPE3]; check my calculations [MPE4]; and show my work [MPE5].

X
SAB_Mini
+