## Mathematics

**Unit 3: Decimals**- working on it!

Your child is starting a unit on decimals. Decimals are use and encountered frequently in our world. For example, decimals found in the prie of items in stores, in baseball batting averages, in time taken to complete races, in dosages of medication, and on the spines of library books.

In this unit, your child will:

- Use a place-value chart to investigae numbers with decimal places beyond thousandths.
- Estimate products and quotients with decimals.
- Multiply decimals by a whole number.
- Divide decimals to thousandths by a 1-digit number.
- Pose and solve problems involving decimal operations.

What are the big ideas?

- The place value chart extends indefinitely to the right to display numbers with decimal places beyond thousandths. Each position in the chart represents 10 times as many as the positio to its right.
- Regardless of the positions of the decimal points, the multiplication or division of two numbers will produce the same digits.
- Estimation plays an important role in decimal computation.

**Unit 2: Understanding Numbers**-

**DONE!**

Your child is starting a mathematics unit on understanding numbers. Whole numbers and integers are used and encountered frequently in our world. For example, whole numbers identify populations, altitudes of mountains, elevations of aircraft, and salaries. Integers identify temperatures above and below freezing, elevations above and below sea level, and plus/minus scores in hockey.

In this unit, your child will:

- represent, read, and write very large numbers.
- identify multiples, factors, and prime and composite numbers.
- Learn which method of computation is appropriate in a given situation.
- Read and write whole numbers in standard, expanded, and written forms.
- Use place value to represent, read, and order whole numbers.
- Identify and describe composite and prime numbers to 100.
- Use the order of operations.
- Use a calculator to add, subtract, multiply and divide.
- Pose and solve multi-step problems.
- Develop an understanding of integers.

What are the big ideas?

- The position of a digit in a number determines its value.
- There are patterns in the way numbers are formed.
- Large numbers are best understood in terms of familiar real-world referents.
- Every number has both size and a positive or negative relationship to other numbers.
- Estimation plays an important role in all computations.

**Unit 1: Patterns and Equations - DONE!**

Your child is starting a mathematics unit on patterns and equations. Patterns occur in nature, art, and many everyday activities. They can be described using numbers, words, symbols and models. Equations are an important way of stating mathematical relationships. Analysing patterns and balancing equations are important skills that help develop your child's number sense and algebraic reasoning.

In this unit, your child will:

Your child is starting a mathematics unit on patterns and equations. Patterns occur in nature, art, and many everyday activities. They can be described using numbers, words, symbols and models. Equations are an important way of stating mathematical relationships. Analysing patterns and balancing equations are important skills that help develop your child's number sense and algebraic reasoning.

In this unit, your child will:

**Find a pattern rule for a number.****Identify, extend, and create patterns.****Describe the same pattern in many ways.****Use patterns to solve problems.****Create a graph to represent a number pattern.****Preserve the balance in an equation by making the same change to each side of the equation.**

**What Are the Big Ideas?**

**Patterns can be represented using words, numbers, symbols, tables, and graphs.****The same pattern can be represented in different ways.****Patterns can be used to solve problems.****An equation is a statement that two expressions have the same value.****If both sides of an equation are changed in the same way, the equation remains balanced.****Addition and multiplication are commutative operations.**

**Patterns occur in many forms. We find them in fabrics, price lists, growth charts, and sports schedules. By drawing your child's attention to the patterns that occur in everyday life, you can help foster her or his mathematical thinking.**