# All Lessons

### Memorize Addition Facts

This operations and algebraic thinking lesson covers how to memorize addition facts. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will practice the addition facts of numbers 2 through 10 by a combination of reading aloud and writing each fact many times in horizontal and vertical formats.

### Subtract Numbers by Counting Down

This operations and algebraic thinking lesson covers subtracting numbers by counting down. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students read the subtraction problem and then subtract the numbers by counting down. A number chart is provided to keep them on track. Word problems are also used. They finish by reading the fact family aloud.

### Determine if Equations are True or False

From CCSS "For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 – 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2."

### Add Three Numbers

Retrofit the existing lesson of adding three numbers to include word problem applications.

### Count and Write Numbers to 120

This number and operations in base ten lesson covers how to count and write numbers to 120. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will read the numbers in a number chart and write in missing numbers.

### Count and Write Numbers to 50

This number and operations in base ten lesson covers how to count and write numbers to 50. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will read the numbers in a number chart and write in missing numbers.

### Count Objects 100-120

This number and operations in base ten lesson covers how to count objects from 100 to 120. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will read sentences that describe a specific number of objects in a group. Then, they will count on from that total to add a certain number more.

### Count Objects 20-100

This number and operations in base ten lesson covers how to count objects from 20 to 100. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will read sentences that describe a specific number of objects in a group. Then, they will count on from that total to add a certain number more.

### Rewrite Numbers

1.NBT.2 Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:

1.NBT.2.A1.NBT.2.A 10 can be thought of as a bundle of ten ones — called a "ten."

1.NBT.2.B1.NBT.2.B The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.

1.NBT.2.C1.NBT.2.C The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

This number and operations in base ten lesson covers how to rewrite numbers. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students are asked to read the number, represent it in dots if needed, and group the dots into groups of ten. Then, they rewrite the number and interpret it in words.

### Compare Two-Digit Numbers Using Symbols

This number and operations in base ten lesson covers how to compare two-digit numbers using symbols. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students are asked to compare each digit of a pair of two-digit numbers, starting at the highest place value. Then, they identify which number is less than, greater than, or equal to, and write the correct symbol.

### Determine Ten More or Ten Less Than a Number

This number sense lesson focuses on identifying ten more or ten less than a number. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students read the problem and identify the bold number. Then, they count ten numbers up to find ten more, or count ten numbers down to find ten less. In addition to the lesson, there are six pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Compare Two Numbers (No Symbols)

This number sense lesson focuses on comparing two numbers. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students identify two numbers on a number chart. Then, they identify which number is smaller and which number is bigger. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Count by Fives

This number sense lesson focuses on counting by fives. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students use a chart to help count by fives and fill in the missing numbers. Then, students read the missing number pattern three times. In addition to the lesson, there are 11 pages of Independent Practice and review flashcards with questions modeled after current adaptive testing items.

### Count By Twos

This number sense lesson focuses on counting by twos. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students use a chart to help count by twos and fill in the missing numbers. Then, students read the missing number pattern three times. In addition to the lesson, there are 14 pages of Independent Practice and review flashcards with questions modeled after current adaptive testing items.

### Measure the Length of Objects

This measurement and data lesson covers measuring the length of objects. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will line up images of paper clips or colored blocks next to images of objects. The objects are so many paper clips or so many colored blocks long.

### Tell & Write Time

This measurement and data lesson covers how to tell and write time. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will read the hour hand and the minute hand. Then they will tell the time, using both analog and digital clock images.

### Identify the Place & Value of Digits in a Number

This number and operations in base ten lesson covers how to identify the place and value of digits in a number. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students are asked to identify a certain digit in a two-digit number, identify the place of that digit, and then circle the name of that place, and write the value of the digit in numerals.

### Draw Bar Graphs

This statistics, data analysis, and probability lesson focuses on drawing bar graphs. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students count the total number of items (fruit in a shopping cart, animals on a farm, etc.) and color in the appropriate amount of boxes in the columns of a bar graph. The students read the missing number pattern three times. In addition to the lesson, there are eight pages of Independent Practice and review flashcards with questions modeled after current adaptive testing items.

### Record Data By Counting

This statistics, data analysis, and probability lesson focuses on recording data by counting. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students read the question and count the number of each of the different items. Then, enter the numbers as tally marks in the correct row on the tally chart. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.