Adding and Subtracting Fractions with the Four Square Model

The video tutorial reviews the year's learning and introduces the foursquare model for understanding fractions. It explains how to use the model to add and subtract fractions, emphasizing the importance of finding the lowest common multiple and converting improper fractions to mixed numbers. The tutorial includes practice problems for students to apply the concepts learned.

What is the primary purpose of the four-square model?

• To calculate the area of geometric shapes

• To assist in understanding and solving fraction problems

• To simplify complex algebraic equations

• To organize thoughts for essay writing

What does LCM stand for?

• Least Common Model

• Last Common Multiple

• Least Common Multiple

• Last Common Model

What strategy is suggested for solving addition problems with fractions?

• Using a calculator

• Guessing and checking

• Finding common denominators

• Ignoring the denominators

Tags

CCSS.7.NS.A.1C

How do you find the common denominator for fractions?

• By adding the denominators

• By finding the LCM of the denominators

• By multiplying the numerators

• By dividing one denominator by the other

Why is it important to find the lowest common denominator?

• To increase the complexity of the problem

• To simplify the addition or subtraction of fractions

• To convert mixed numbers to improper fractions

• To make the fractions larger

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the final step when solving a fraction addition problem?

• Simplifying the fraction

• Adding the numerators

• Finding the LCM

• Converting to a mixed number

Tags

CCSS.7.NS.A.1C

What is an improper fraction?

• A fraction where the numerator is larger than the denominator

• A fraction that cannot be simplified

• A fraction where the numerator is smaller than the denominator

• A fraction equal to one

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

How do you convert an improper fraction to a mixed number?

• By dividing the numerator by the denominator

• By multiplying the numerator by the denominator

• By subtracting the denominator from the numerator

• By adding the numerator to the denominator

What is necessary when subtracting mixed numbers?

• Borrowing from the whole number

• Finding the LCM of the denominators

• Multiplying the whole numbers

• Converting to improper fractions

Tags

CCSS.7.NS.A.1C

What does borrowing in fraction subtraction help to avoid?

• Getting an improper fraction

• Making a mistake in addition

• Finding the LCM

• Subtracting a larger numerator from a smaller one

Tags

CCSS.7.NS.A.1C