Introduction
One of the first things you might think about when you talk about a bears is hibernation. When a bear 'hibernates', it fells for a really deep sleep. It's body temperature drops, but not drastically; it does not wake up...not even to go to the bathroom or get some food. Could you imagine if you would fell for a deep, long sleep, with no chance to get some food? Bears can lose 25-40% of their body weight during hibernation – burning their fat for fuel. So, before the hibernation they will eat large amounts of food, adding body fat that will nourish them during the winter. When bears awaken in the spring, they are very hungry. They start hinting for the food: leaves, flowers, grasses, mushrooms, berries, roots, nuts, small mammals. Overeating is so bad for a bears; it could cause big health problems. We have to help bears to find food, and at the same time, by controlling their food balance, protect them from overeating.
Our class has been chosen to make sure that our bears don't have too many fish to eat. We are going to count them and make sure that each bear takes the correct amount of fish and no more! We could help the bears be healthy and stay in shape!
Task
Each team will be in groups of three. Your team will try to help a bear to catch the correct amount of the fish. It is your job to count the fish and control daily fish amount; it could not exceed 50. Just remember, the fate of the bears is in your hands; if you count wrong and don't add them up, bears lives would be in danger. There are three group members and each member will have a specific job.
You need:
- 1 reader who will read the math problem
- 1 person who will write down the amount of fish eaten by a bear for each meal (breakfast, lunch, dinner); solve the math problem being asked; write total amount of fish eaten by bear for all day
- 1 person who will present their 4 word problems to the class and work out the math addition on the board
Process
Your Process is summarized in the following points:
- Get into groups of three that I have already assigned and assign each member a role they will contribute to. The roles include; the reader, the calculator, and the presenter. Keep in mind that it is still a group so all members must be active in each part!
- When you have defined your roles start the assignment.
- First have the reader of the group read aloud the first word problem. Then discuss what numbers you will be using in the word problem.
- Have the person who is supposed to calculate the addition problem write down the numbers on the groups white board and work out the problem. All group members are to be watching you and helping when you need help.
- After that make sure that all group members agree with the final answer. Make sure to double check to see if your word problem matches up with your numbers on your white board and the answer you put on the group worksheet.
- Follow the following instruction for the next two word problems.
- Don't hesitate to ask me any questions you may have about the problems. Also don't forget to check out the awesome YouTube videos down below for extra help!
- When all groups have finished each group will take a turn going up to the board and choosing their favorite word problem to solve. It is now the presenters turn to work the problem out on the board and explain if that fisherman took to many fish or not!
- While other groups are presenting each of you will individually check each of the problems to make sure the students in the other groups did them properly. Remember the population of the bears is in our hands so we have to try do not make any mistakes !
Evaluation
You will be evaluated on a number of factors:
The first will be your group work and participation in the project.
Everyone must participate in this process, you will be graded based on whether or not you are "on task" as we peruse the room.
The second will be on the worksheet your whole group turns in. Are the answers correct? Is your work shown? Is it neat and readable?
The third is based on your presentation. Did the presenter speak loudly? Were all members quiet and respectful to the person speaking? Did the group members help the presenter if they got stuck?
Conclusion
Congratulations Class!
You have successfully saved the population of the bears! Your fantastic adding skills and group work saved the day! You learned to dissect word problems to solve the adding problems. Next week we will be focusing on subtracting, and I wonder what more our class can do for the environment?
If you want more adding practice feel free to come talk to me about more worksheets or visit this fun new math games website at the bottom of this page! It is called cool math for kids. There are many different games to help you get better with your math. You must be fantastic at adding so that we can continue with subtracting next. Ask a parent or guardian to make flash cards to help you memorize your addition, and don't forget practice makes perfect!
Credits
Extra adding help!
Here are a group of videos I found to help you out! Some are songs to help you with addition! if you need more help don't be afraid to ask!
You could watch helpful video:
https://www.youtube.com/watch?v=OOcclZ8ucrU
https://www.youtube.com/watch?v=LEaFf_qGLv
To practice your skill adding two digit numbers you could play games:
http://www.math-play.com/soccer-math-adding-two-digit-whole-numbers/adding-two-digit-numbers.html
http://www.sheppardsoftware.com/mathgames/fruitshoot/fruitshoot_addition.htm