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Grade Level/Subject/Topic: 5th/Math/Decimals (x, +, -) Date:
Created by: Rebekah Flora/STE
Standards Addressed:
5.4 The student will find the sum, difference, and product of two numbers expressed as decimals through thousandths, using an appropriate method of calculation, including paper and pencil, estimation, mental computation, and calculators.
Pre-Assessment: Given last Friday on CPS – covered adding, subtracting, and multiplying decimals
Defining the Learning Goals: What the student will:
Know (Facts/Vocabulary): How to correctly write vertical multiplication, addition, and subtraction problems Larger multiplication, addition, and subtraction problems must be written vertically in order to solve them accurately Multiplication facts through 9s Steps involved in multiplying 3 digit times 1 or 2 digit numbers Whole number and decimal place value and the importance of “lining up” place values correctly when adding or subtracting o Add zeroes when necessary to save spots in adding/subtracting decimals Steps involved in properly placing the decimal in the product, by counting the decimal places in the multiplicands and “scooting over” the correct amount Vocabulary: regroup, product
Understand (Big Ideas): Multiplication is another way to add. Multiplication is a computation method that can be used to solve everyday problems. Decimals are a huge part of our lives, especially when they are representing money. It’s important to understand decimals as they relate to dollars and cents because it can help us to make decisions about what we can buy and what we m ay need to pass up to stay within a budget.
Do (Specific Skills student is able to do after the lesson): Create and solve 3 digit times 1 or 2 digit multiplication problems with decimals. Create and solve addition and subtraction problems with decimals.
Materials/Supplies: Menus o I downloaded menus from the internet, I typed in A&G Pizza, and Western Sizzlin’ in google, and use what came up. You could use any menus for this lesson, but you might have to change the worksheets to reflect the food that is on the menu that you have chosen. Feel free to change them and use them however it suits your classroom needs. Worksheets Paper/pencil
Procedures/Activities
Day 1: Whole group instruction for multiplying decimals. (We have already covered adding and subtracting decimals, so I may mention that, but I will not dwell on it since everyone is able to complete those skills at this time.) I will definitely mention the way that the decimal is placed in the product based on the number of decimal spaces that are used in the multiplicands. (On the pre-assessment 0% of students moved the decimals correctly.) We will practice some problems together on the board after taking notes and I will model what students will be doing the following day on their DI lessons, using an online menu and the smartboard.
Day 2: Differentiated decimal lesson. Students will use menus that I have downloaded from the internet to complete some multiplication (predominately) and a few addition and subtraction problems involving decimals. Students will be given a menu and a worksheet to go along with it, based on their readiness of this skill and on their understanding and familiarity with multiplication facts. Students will use the menu to calculate the bill for the food items ordered in each of 10 scenarios. Low Readiness A & G Pizza Medium Readiness Western Sizzlin * High Readiness * Western Sizzlin *
Day 3: Students will work in small groups today to complete decimal problems using a different menu (I used a menu that I downloaded from the internet from a restaurant called “The Hungry Hobo,” but any menu will do.) Each student will be using the same menu today, but he or she will be making their own choices to complete the problems. At the end of the lesson, we will come back together as a whole group and discuss the importance of using decimals correctly and discuss the merits of the lessons that we used this week.
(If) Differentiated Instruction:
What? content process product
How? readiness interest learning profile
Why (What prompted you to differentiate in this way)?
Anchor Activities: Math centers Computer centers
Post-Assessment: iTest (quiz) to be given on Friday, including adding, subtracting, and multiplying decimals
Closure: exit cards o 1. Did you enjoy the lessons this week? o 2. Do you think the lessons helped you learn more about decimals? o 3. What could we do to make these lessons even better?
Teacher Reflection: (What went well? What would you do differently? Why?) Dinner at A&G Pizza
Tonight you and your family have decided to dine at A&G Pizza. Use the menu that I have given you and scratch paper and pencil to answer the questions about each order. Use what you know about multiplying decimals to make this easy…the quicker you get finished the quicker you can eat!
(1) What is the total cost of 2 orders (2) What is the total cost of 6 orders of Meatball Parm? of chicken fingers with mozzarella sticks?
(3) What is the total cost of 4 cheese (4) What is the total cost of 9 steaks with French fries? strombolis?
(5) What is the total cost of 3 cheese (6) What is the total cost of 7 ham, raviolis with bread and butter? salami, and provolone sandwiches?
(7) What is the total cost of 3 turkey (8) What is the total cost of 4 subs PLUS 2 cheeseburgers with calzones PLUS 7 small antipasto with French fries? bread and butter?
*Hint: cost of turkey subs + cost of cheeseburgers total cost *Use hint from #7 (9) What is the total cost of 6 (10) Find the total cost of 3 chicken chicken fingers with French fries parm sandwiches with onion rings PLUS 8 strombolis? PLUS 6 small salads with grilled chicken PLUS 2 spaghetti and meatballs. Then, tell the change that you would get back if you paid $75.00
* Hint cost of chicken parm 75.00 cost of salads - total cost for part 1 *Use hint from #7 Dinner at Western + costSizzlin of spaghetti * amount of change total cost for part 1 Tonight you and your family have decided to dine at Western Sizzlin. Use the menu that I have given you and scratch paper and pencil to answer the questions about each order. Use what you know about multiplying decimals to make this easy…the quicker you get finished the quicker you can eat!
(1) What is the total cost of 3 chicken (2) What is the total cost of 4 tenders kids meals? ribeyes?
(3) What is the total cost of 6 fried (4) What is the total cost 8 kids meal shrimp dinners? corn dogs?
(5) What is the total cost of 9 (6) What is the total cost of 3 philly chopped sirloin kids meals? steak sandwiches PLUS 3 beverages?
*Hint: cost of philly sandwishes + cost of beverages total cost (7) What is the total cost of 2 (8) What is the total cost of 4 sirloin country fried steaks PLUS 4 grilled tips PLUS 2 kids meal hamburgers vegetables? PLUS 5 sautéed mushrooms?
(9) Find the total cost of 3 ribeyes (10) Find the total cost of 2 T-Bones PLUS 2 chopped sirloins. Then, tell PLUS 3 corn dog kids meals PLUS 5 the change that you would get back if beverages. Then, tell the change that you paid $65.00. you would get back if you paid $50.00.
* Hint cost of ribeyes 65.00 + cost of sirloins - total cost for part 1 total cost for part 1 amount of change * Dinner at Western Sizzlin * Tonight you and your family have decided to dine at Western Sizzlin. Use the menu that I have given you and scratch paper and pencil to answer the questions about each order. Use what you know about multiplying decimals to make this easy…the quicker you get finished the quicker you can eat!
(1) What is the total cost of 7 bacon (2) What is the total cost of 6 10 oz. cheeseburgers? super top sirloins?
(3) What is the total cost of 4 16 oz. (4) What is the total cost of 5 steak T-Bones? and shrimp meals?
(5) What is the total cost of 7 (6) What is the total cost of 4 grilled country fried steaks PLUS 5 steak on shrimp meals PLUS 3 philly steak a stick meals? sandwiches PLUS 7 corn dog kids meals?
(7) What is the total cost of 8 grilled (8) Find the total cost of a 3 lb. chicken sandwiches PLUS 8 fried buffet to go PLUS 2 chicken strips. shrimp meals PLUS 16 beverages? Then, tell the change that you would get back if you paid $25.00.
* Hint cost of 3 lb. buffet 25.00 + cost of chicken strips - total cost for part 1 total cost for part 1 amount of change
(9) Find the total cost of 2 14 oz. (10) Find the total cost of 5 bacon thick cut sirloins PLUS 4 steak and cheeseburgers PLUS 5 grilled shrimp meals. Then, tell the change vegetables PLUS 5 beverages. Then, that you would get back if you paid tell the change that you would get $100.00. back if you paid $50.00. Name: ______Date ______Class ______
Menu Math Dinner at the Hungry Hobo 1. You have $75.00 to take yourself and 2. Decide what items you will eat for two friends out to dinner. Divide to find dinner and add them up to find a total out how much each person can spend for amount that you will spend. List the items dinner. below and tell how much each item is, then add them up to find the total.
3. Based on the amount that each person is 4. Decide what items your friend, allowed to spend, how much money will ______, will eat for you have left after your meal? Subtract the dinner and add them up to find a total amount your bill came to in #2 with the amount that you will spend. List the items total amount that each person can spend below and tell how much each item is, from #1. then add them up to find the total. 5. Based on the amount that each person is 6. Decide what items your friend, allowed to spend, how much money will ______, will eat for your friend have left after your meal? dinner and add them up to find a total Subtract the amount the bill came to in #4 amount that you will spend. List the items with the total amount that each person can below and tell how much each item is, spend from #1. then add them up to find the total.
7. Based on the amount that each person is 8. What was the total amount spent at allowed to spend, how much money will dinner? (Add each person’s total from your friend have left after your meal? problems 2, 4, and 6) Subtract the amount the bill came to in #6 with the total amount that each person can spend from #1.
How much money will you have left to leave a tip? (Subtract the total of everyone’s meals from the original amount you had to spend.)