Dear Third Grade Families,
In the 1st nine weeks your student will be learning how to represent and solve single and multi-step addition and subtraction word problems within 1,000. The strategies used for computations will be based on place value, properties of operations, and the relationship between addition and subtraction. The methods for representation will include pictorial models, number lines, and equations. Students will also be using estimation as a tool for problem solving and understanding the reasonableness of their solutions.
Third grade students will be applying basic addition and subtraction facts as they solve more complex problems. Students will develop an understanding of the meanings of addition and subtraction of whole numbers by using models and problem solving. They will compare solution strategies to gain a deeper understanding of the relationship between addition and subtraction. Students will learn the traditional algorithm in 4th grade.
You can help your child in several ways.
- Ask your child, “How is addition different from subtraction?”
- “Can you show me how addition looks on a number line/equation/strip diagram?”
- “Can you show me how subtraction looks on a number line/equation/strip diagram?”
- Encourage your child to practice his/her math facts at home. This will be critical to his/her success with fluently solving complex problems.
- Explore and discuss the key terms in the box below.
The Third Grade Math Team
Important Vocabulary for this Unit
Addend - a number that is added to another
Sum - the result of adding two or more addends together
Addend + Addend = Sum
Difference - the result of subtracting one number from another.
Math at home
I often hear from parents who want their child to have extra math practice at home. Here are a few ways you can have your child have extra practice at home.
Flash cards: Students need to be automatic at their facts within 20 (addition facts up to 10+10, subtraction facts up to 20-20, multiplication facts up to 10x10)
Money: Students need to be able to identify all coins and dollars by name and amounts and add up money. In a society that uses mostly debit cards, this has become a challenge for our students.
Telling time: Students need to be able to tell time on an analog clock and know common phrases such as half past, quarter after and quarter to.
I do not assign homework for the sake of doing homework. Students may have homework if they did not finish their work in class due to a variety of reasons including fire drills, being off task, and assemblies in order to maintain the same pace as all my math blocks. Beginning second semester there will be homework assigned that is a spiral review of everything we have worked on up until that point.