# All Lessons

### Use Repeated Subtraction to Divide

This number sense lesson focuses on using repeated subtraction to do division. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students write down the number from the division problem. Then, they subtract the numbers to find out how much is remaining, and repeat the subtraction until there is nothing remaining. Finally, students count the number of times they subtracted and write it in the answer space of the division problem, and read the original division problem aloud. In addition to the lesson, there are eight pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Identify the Place and Value of Digits in a Three-Digit Number

This numbers and operations in base ten lesson covers how to identify the place and value of digits in a three-digit 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 three-digit number, identify the place of that digit, and then write the value of that digit in both numerals and words.

### Count Within 1000

This numbers and operations in base ten lesson covers how to count within 1000. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students are asked to read the number in the hundreds place, and then read the two-digit number that follows.

### Skip-Count By 5s, 10s, and 100s

This numbers and operations in base ten lesson covers how to skip count by 5s, 10s, and 100s. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students are asked to read the first number, and then write in the next five numbers in a skip-count sequence.

### Write Numbers Using Expanded Form

This numbers and operations in base ten lesson covers how to write numbers in expanded form. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students are asked to identify the place value of each digit in a three-digit number, and then write the number as the addition of the value of each digit.

### Compare Three-Digit Numbers Using Symbols

This numbers and operations in base ten lesson covers how to compare three-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 three-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.

### Add Two-Digit Numbers (With Regrouping)

This number sense lesson focuses on adding numbers (two digits long). The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students add the digits in the ones place and regroup if the sum is ten or more. Then, they add the digits in the tens place. Finally, students read the addition problem and the sum aloud. In addition to the lesson, there are seven pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Subtract Two-Digit Numbers (With Regrouping)

This number sense lesson focuses on subtracting numbers (two digits long). The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students determine if regrouping is needed. Then, they subtract digits in the ones place, and in the tens place. Finally, students read the problem and sum aloud. In addition to the lesson, there are "lining up subtraction" flashcards along with seven pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Add Three-Digit Numbers (With Regrouping)

This number sense lesson focuses on adding numbers (three digits). The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students add the digits in the one's place and regroup if the sum is ten or more. Then, they add the digits in the tens place and regroup if the sum is 10 or more. Finally, students read the addition problem and the sum aloud. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Add Two-Digit Numbers (Without Regrouping)

This number sense lesson focuses on adding numbers (no regrouping). The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students add the digits in the ones column, the tens column, and then the hundreds column, if needed. Then, they read the problem and the sum aloud. In addition to the lesson, there are eight pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Add Up To Four Two-Digit Numbers

This Common Core numbers and operations in base ten lesson covers how to add multiple two-digit numbers. The lesson includes research-based strategies and strategic questions that prepare students for Common Core assessments. In this lesson, students are asked to add the digits by place value. Students are also asked to regroup any group of ten or more with concept demonstrations to show what regrouping means in real terms. In addition to the lesson, there are four pages of Independent Practice with questions modeled after the Common Core assessment items.

### Solve Money Problems Involving Coins

This measurement and data lesson covers the solving of money problems involving coins. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will identify the number of coins both visually and in words, note their value, and then combine by counting coins to find the sum.

### Solve Money Problems Involving Bills & Coins

This measurement and data lesson covers the solving of money problems involving bills and coins. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will identify the number of bills and coins both visually and in words, note their value, and then combine by counting the bills then coins to find the sum.

### Measure the Length of an Object to the Nearest Inch

This measurement and data lesson focuses on measuring the length of an object to the nearest inch. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students line up the zero mark on the ruler with the object. Then, then find the length of the object by counting the inches to the nearest inch. Finally, they record the length and read the sentence. In addition to the lesson, there are eight pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Measure the Length of an Object in Inches

This measurement and geometry lesson focuses on measuring the length of an object to inches The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students line up the zero mark of the ruler with the object. Then, then find the length of the object by counting the number of inches. Finally, they record the length and read the sentence. In addition to the lesson, there are eight pages of Independent Practice and review with questions modeled after current adaptive testing items. Examples of different rulers are shown.

### Represent Data in More Than One Way

This statistics, data analysis, and probability lesson focuses on representing data in more than one way. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students read the tally chart and count the amount of tally marks in each row. Then, they find the matching columns in the bar graph, and shade in the correct amount of boxes. In addition to the lesson, there are eight pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Tell Time to the Nearest Quarter Hour

This measurement and geometry lesson focuses on telling time to the nearest quarter hour. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students identify the correct time on a clock and write the hour and minutes in the spaces provided. Then, they determine if the time is a quarter past or a quarter to. In addition to the lesson, there are eight pages of Independent Practice and review with questions modeled after current adaptive testing items.

### Draw a Bar Graph

Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using the information presented in a bar graph.

### Solve Word Problems Involving Lengths

Use addition and subtraction within 100. Use the same unit of measure within each problem.

### 2nd Grade Next Generation Science Standards Learning Objectives & Essential Tools

Standards are often confused with being Learning Objectives. Standards are the content and skills students need to know by the end of a school year. Learning Objectives are the content and skills students need to know by the end of a lesson. Our Next Generation Science Standards Learning Objectives & Essential Tools guides display teachable Learning Objectives alongside the standards for easy reference. Here on Educeri, the guide also links to relevant lessons right here on the site, making finding a lesson easy. As we add more lessons, we will be updating this guide, so check back regularly.