Partial Parties!
Estimate Products
Area Models
Amplify Terms
Amplify Concepts
100
Show the partial products in an area model:
14 x 19
10 x 10 = 100
10 x 9 = 90
4 x 10 = 40
4 x 9 = 36
100
Estimate the product of 54 and 16
54 x 16 = 50 x 20 = 1,000
100
Show the area model for 29 x 32 THEN SOLVE!
29 x 32 =
20 x 30
9 x 2
9 x 30
2 x 20
Sum of partial products: 928
100
What is the meaning of ENGINEER?
Engineer: a person who uses science knowledge to design something in order to solve a problem.
100
List 2 types of systems we learned about last week.
DOUBLE JEOPARDY: can you list 4 instead of 2?
Systems we discussed and learned about last week: bikes, home (with heating, electrical and plumbing), Public water system, electrical energy system.
200
Show the partial products in an area model:
22 x 35
20 x 30 = 600
2 x 5 = 10
20 x 5 = 100
30 x 2 = 60
200
DOUBLE JEOPARD!!!
Round each factor to the nearest ten then give the estimate
69 x 15
69 x 15 = 70 x 20 = 1,400
200
Solve for the product using an area model:
24 x 22
24 x 22 =
20 x 20
4 x 2
4 x 20
2 x 20
Final product: 528
200
DOUBLE Jeopardy!!!!
Explain what a system is.
A system is a group of parts that work together.
200
True or False:
Each part in the system plays a role to perform an overall function
TRUE! Each part in the system plays a role to perform an overall function.
300
DOUBLE JEOPARDY!!!
Show the partial products in an area model:
21 x 27
20 x 20 = 400
1 x 7
20 x 7 = 140
20 x 1 = 20
300
Estimate the product by rounding each factor to the nearest ten!
96 x 13 =
DOUBLE JEOPARDY FOR SHOWING ESTIMATE AND FINAL PRODUCT!
96 x 13 = 100 x 10 = 1,000
PRODUCT: 1,248
300
DOUBLE JEOPADY!!!!
Use mental math:
if 2 x23 = ______ then 20 x 23 =____
If 2 x 23 = 46 then 20 x 23 =460
300
Define the term: Function.
A function is what something can do.
300
TRIPLE JEOPARDY!!!!
Name the parts of the cherry pitter from last week!
Handle, cherry holder/hole, metal stick/poker, spring
400
Emma bought 14 packages of rolls for a party. There were 18 rolls in a package. After the party, there were 8 rolls left over.
How many rolls were eaten?
(14 x 18) - 8
There were 144 rolls eaten!
400
Estimate the product by rounding each factor to the nearest ten.
12 x 37
DOUBLE JEOPARDY FOR SOLVING FOR FINAL PRODUCT!!!!
12 x 37 = 10 x 40 = 400
Final product: 204
400
Find the product:
20 x 70
20 x 70 = 140
400
What does it mean to synthesize?
Synthesize means: to put together multiple pieces of information in order to understand something.
400
Describe one way that our created simple electrical system is similar to the public electrical energy system.
(answers vary, teacher will decide!)
500
Show the partial products in an area model.
42 x 15
DOUBLE JEOPARDY FOR SOLVING OF FINAL PRODUCT!
42 x 15 =
40x 10
2 x 5
40 x 5
10 x 2
500
Estimate the product by rounding each factor to the nearest ten.
23 x 90
23 x 90 = 20 x 90 = 1800
500
Solve for the product: 90 x 77
90 x 77 = 6,930
500
DOUBLE JEOPARDY!!!
List the parts of the simple system we created as a class!
Solar panel, wires, propellor, motor (and energy source= an "on" lamp.
500
Describe 2 things you remember from chapter 1 on Energy conversions!
(Answers vary, but GOOD answers get double points!)