This week we are discovering and using properties of triangles. Here are links to activities we are using in class:
Monday: The three interior angles of a triangle ALWAYS add up to 180 degrees.
Tuesday: The sum of the two shorter sides of a triangle is always more than the length of the longest side.
Review Concepts: The area of a triangle is always half the area of the rectangle with the same base and height.
The area of a rectangle is base times height.
HOMEWORK: Finish classwork if needed and complete assignments from mathgames.com. Use the login from class.
Welcome back from winter break! This week we will be using proportions to solve problems involving scale drawings. Here are some of the vocabulary words we will use:
Scale Drawing: A drawing that is proportional to real life. For example, a drawing of a house would have the exact same shape as the real house, but it would be smaller.
Scale: The ratio of the length of a drawing to the length in real life. For example, on the drawing of the house, one inch might represent 2 feet on the real house. Often the scale would be written 1 in: 2 ft.
Also, on a map a scale could be 2 inches: 50 miles. This means that every two inches on the map represents 50 miles in real life.
Scale Factor: The ration of the length of the drawing to the length in real life when both of the measurement have the same units. For example, if the scale is 1 in:2 ft, the scale factor would be 1:24 because 2 feet equals 24 inches.
Here are some resources that we will use in class:
This week we will begin unit 3. We are learning that a ratio is a comparison or relationship between two numbers with division. Ratios look like fractions. Rates are ratios in which the two numbers have different units. When we express a rate with a denominator of one, the rate is also called a unit rate. For example, we use unit rates tell us a cost per item at the store or miles per hour of a road trip. Here are some resources we will use in class:
This week we will review for the unit 2 test which will be on Thursday, November 8th. Since Tuesday is a student holiday, we only have Monday and Wednesday to review. Students should review their old quizzes and practice problems from the study guide. They should also complete these two homework quizzes:
Directions: Go to quizizz.com and put in the game code. Sign in with your first name and first letter of your last name. If you want to try the quiz a second time, use the same sign in name followed by #2.
One and two step equations: Game Code – 609408 (This quiz ends on Wednesday night.)
Inequality concepts and equations: Game Code – 094761 (This quiz ends on Thursday night.)
This week we will learn to solve one step equations with integers. We will practice using a balance simulation on the computer. To use the activities, you must put in the password we used in class:
One step equations with algebra tiles – Explore – Put your own equations in the activity.
This week we will practice a little more with combining like terms and we will learn to use the distributive property to go between an expanded form and grouped form of algebraic expressions.
Combining Like Terms practice
|Click to Run|
The Distributive Property – (Only watch the first 6 minutes and 45 seconds)
This week we are beginning unit 2. Students will learn the following algebra vocabulary words:
- Algebraic expression
- Numerical expression
We will practice using the School Yourself website. Students will need to use their username and password from class.
1) What is a variable? (A number we don’t know) – Go to Algebra, then Solving Equations, and Solving for unknowns – or https://schoolyourself.org/learn/algebra/number-line-solve
2) How do we solve expressions? (Substitute a number for a variable) https://schoolyourself.org/learn/algebra/evaluate
3) What is a coefficient? (The number in front of a variable) https://schoolyourself.org/learn/algebra/coefficients
4) How do we simplify expressions? (Combine like terms) https://schoolyourself.org/learn/algebra/simplify
This week we are reviewing decimal operations and applying our knowledge to completing problems with positive and negative decimals.