Mathematics
Grade 8
15 min
Symmetry
Symmetry
What you'll learn
- Identify the key information and operation needed to estimate the answer to a word problem with at least 80% accuracy.
- Apply rounding techniques to estimate solutions for addition, subtraction, multiplication, and division word problems, justifying the rounding choice in at least 3 out of 4 problems.
- Solve multi-step word problems by first estimating the answer and then calculating the actual answer, comparing the two to determine if the calculated answer is reasonable in at least 2 out of 3 problems.
- Explain the benefits of using estimation to check the reasonableness of solutions to real-world problems, providing at least two distinct reasons with supporting examples.
Tutorial Preview
1
How many lines of symmetry does a square have?
2
What is the order of rotational symmetry for an equilateral triangle?
3
Does the letter 'S' have point symmetry?
Sample Practice Questions
Easy
How many lines of symmetry does a rectangle have?
0.0
1.1
2.2
3.4
Easy
How many lines of symmetry does an equilateral triangle have?
0.0
1.1
2.3
3.6
Easy
What is the order of rotational symmetry of a square?
0.1
1.2
2.4
3.8
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Frequently asked questions
What grade level is "Symmetry"?
Symmetry is a Grade 8 Mathematics lesson on ExcelOS.
What will I learn in Symmetry?
You'll be able to: Identify the key information and operation needed to estimate the answer to a word problem with at least 80% accuracy; Apply rounding techniques to estimate solutions for addition, subtraction, multiplication, and division word….
Is "Symmetry" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Symmetry?
This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.