Lesson Plans - Grade 7 Math

10-4-1999
1. HWDecimalExample.2. Problem Solving..3. .................
4. .................5. .................6. .................

OBJECTIVE: Round decimals(2-2, Pp51ff); Estimate with decimals (2-3, Pp54ff) ACTIVITIES: Review the rules for rounding. Introduce discus the procedure for estimating with numbers containing decimals. See page 56 17-34. Solve the "How old is Mr. Nelson" problem. NOTES: HOMEWORK: Page 574 lesson 2-2 even

How Old is Ms. Nelson? - posted September 27, 1999

One day in math class Shelly asked, "Ms. Nelson, how old are you?"

Ms. Nelson calmly replied, "This year I'm three times as old as my little sister. However, six years ago I was five times as old as she was."

"Well that doesn't help," yelled Clara.

"Sure it does," said Frank.

"I don't get it, " complained Brian.

Ms. Nelson said, "Think about it some more and we will see how many of you can guess my age when we have class tomorrow."

How old is Ms. Nelson?

Please remember that your solution must include a full explanation of the method you used to solve this problem.

Bonus: Ms. Nelson's age is a special number. What is the name used for this type of number?

10-5-1999
1. HW574(2-2)even...2. P59 18-27........3. .................
4. .................5. .................6. .................

OBJECTIVE: Add and subtract decimals (Pp58ff) ACTIVITIES: Review the procedures involving the addition and subtraction of deicmal numbers, specifically the ALIGNMENT of the decimal points. Do page 59 18-27 to reinforce both decimal procedures and equation writing procedures. NOTES: HOMEWORK: Page 575(lesson 2-4)odd numbers - ESTIMATE and solve.

10-6-1999
1. HW575(2-4)odde/s.2. P60(2-4a)........3. .................
4. .................5. .................6. .................

OBJECTIVE: Multiply decimals using models(2-4a, Page 60) ACTIVITIES:[Distribute Progress Report #2] In Lab 2-4a, be sure to specify the notion of the ONE unit. (see models on page 60) NOTES: Note that the models only apply to TENTHS HOMEWORK: Explain in words and pictures how to solve the problem 12 x 23.

10-7-1999
1. ProgReport#2.....2. HW 12x23.........3. .................
4. .................5. .................6. .................

OBJECTIVE: Multiply decimals(2-4, Pp61ff) ACTIVITIES: Model/reinforce the procedure for determining the placement of the decimal point in a multiplication problem involving decimal numbers. NOTES: Refer to models as appropriate. Will require students to extrapolate. HOMEWORK: P63 32-41

10-8-1999
1. HWP63 32-41......2. P575(2-4)col2....3. Problem/Week.....
4. .................5. .................6. .................

OBJECTIVE: Multiply decimals. ACTIVITIES: Students will complete the solution of the problems on page 575 lesson 2-4, column 2 and be prepared to explain their solution, specifically, the placement of the decimal poin in the answer. NOTES: HOMEWORK: Explain with words and pictures how to solve 102.13 x 1.221

Wilda's Swamp Water

Wilda Witchen is planning a huge Halloween party. You will be invited if you can deliver the one ingredient she still needs to finish her haunting decorations.

She wants EXACTLY 8 quibits of swamp water for her haunted swamp diorama.

Before you can ask her what a quibit is, she hands you 2 containers and shoves you out the door.

As you head to the swamp you notice that one container is marked 10 quibits and the other is marked 6 quibits. The swamp is a 10 minute walk from Wilda's house and since it will be getting dark soon you want to get the swamp water and return to Wilda's house as quickly as possible.

What will you do? Please be careful to completely explain all the steps that you will take to measure out the exact amount of swamp water Wilda has requested.

Bonus: On the way back to Wilda's you began to wonder what you might have done if she had requested 1 quibit or 2 quibits or 3 quibits of swamp water.... Keep a record of the steps you might use to measure each amount from 1 to 16 quibits of swamp water. Study your findings and report your observations.