Download Honors Chapter 5 Extra Credit Family Letter

Honors Chapter 5 Extra Credit Family Letter
Dear Parent or Guardian:
Recently we began Chapter 5: Multi-Step Equations and Inequalities. In this chapter, your
student will learn how to solve one-step and two-step equations involving addition,
subtraction, multiplication, and division. Also, we will be solving equations with rational
coefficients. Included in this letter are key vocabulary words and activities you can do
with your student. If you have any questions or comments, feel free to contact me at
[email protected]
Sincerely,
Ms. Rifkowitz
Vocabulary
coefficient The numerical factor of a term that contains a variable.
equation A mathematical sentence that contains an equals sign, =, stating that two
quantities are equal.
equivalent equations Two or more equations with the same solution.
formula An equation that shows the relationship among certain quantities.
inequality An open sentence that uses <, >, ≠, ≤, or ≥ to compare two quantities.
solution A replacement value for the variable in an open sentence. A value for the
variable that makes an equation true.
Extra Credit At-Home Activities
Hands-On Activity
Materials: cups and positive and negative counters
• Write a one-step addition equation, for
example x + 3 = 12.
• Model the equation as shown. Use a cup
to represent the unknown value, x.
+
+
• Add enough positive counters in the cup
so that both sides of the equal sign have
the same number of total counters. The
number of counters in the cup is the
solution to the equation.
=
+
+
+
+
+
+
+
+
+
+
+
+
+
• Repeat this activity using other addition
equations.
Online Activity
• Find the formula that converts degrees
Celsius to degrees Fahrenheit.
130°
125°
120°
115°
110°
100°
90°
• Choose 5 sets of numbers for degrees
Fahrenheit to convert.
80°
70°
60°
50°
40°
• Solve for the remaining variable.
90°
85°
80°
75°
70°
65°
60°
55°
50°
45°
40°
15°
10°
5°
0°
105°
100°
95°
25°
20°
215°
210°
105°
35°
30°
220°
95°
85°
75°
65°
55°
45°
35°
30°
25°
20°
15°
10°
5°
0°
°C
°F