Mrs. Croft, a second-grade teacher, introduces an online math course focusing on arrays and equal groups. The course covers composing, decomposing, and representing arrays, along with solving word problems. Key vocabulary includes arrays, columns, and rows. The video includes fluency exercises and application problems to reinforce learning. Students will learn to use arrays to solve word problems and relate them to repeated addition.

What is the main topic of today's lesson?

• Fractions

• Arrays

• Geometry

• Subtraction

What is an array?

• A group of numbers

• A set of equations

• A type of graph

• Items arranged in rows and columns

What is the purpose of learning arrays?

• To solve word problems

• To practice division

• To learn multiplication

• To understand fractions

What is a column in an array?

• A diagonal group of items

• A circular group of items

• A vertical group of items

• A horizontal group of items

What is the learning intention related to arrays?

• To solve word problems

• To solve equations

• To practice division

• To learn multiplication

What is the missing number to make 170 plus something equal 200?

• 50

• 40

• 30

• 20

If 260 plus 40 equals 300, what pattern can be observed?

• The sum is always 500

• The added number remains the same

• The sum is always 400

• The added number is always 50

What is the pattern observed in the fluency exercise?

• The sum is always 300

• The sum is always 400

• The added number is always 50

• The added number remains the same

How many people are in line at each teller window in Lesson 5?

• 5

• 4

• 2

• 3

What is the total number of people in the bank line problem?

• 10

• 11

• 12

• 13