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Block pounds

In this lesson from Illuminations, students explore the use of variables as unknowns as they solve for the weights of objects using information presented in pictures. They also model situations that involve the addition and subtraction of whole numbers,... (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

Classifying numbers

Students use Venn diagrams to represent the relationships between the factors or products of two numbers. Illuminations provides helpful activity sheets and detailed instructions for completing the lesson. Students will: Review multiplication... (Learn more)

Format: lesson plan (grade 6–7 Mathematics)

Provided by: Illuminations

Comparing connecting cubes: Looking back and moving forward

This lesson, the last of a six-lesson unit from Illuminations, reviews the work of the previous lessons and suggests a framework for summative assessment. Students use the mathematical knowledge and skills developed in the previous lessons to demonstrate... (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

Comparing sets

In this lesson, the second of a six-part unit from Illuminations, a children's book sets the stage for encouraging students to review counting back. Students write subtraction problems and model them with cubes. They then compare sets and record differences... (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Connections and extensions

In this lesson, students make connections and expand on what they learned in previous lessons. Then, they explain the effects of different moves on the game board. Illuminations provides links to the three prior lessons, an activity sheet, and detailed... (Learn more)

Format: lesson plan (grade 6–7 Mathematics)

Provided by: Illuminations

Counting back

This lesson, one of a six-part unit from Illuminations titled “How Many More Fish?,” students count to compare plates of fish-shaped crackers then record the comparison in vertical and horizontal format. They apply their skills of reasoning... (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Counting back and counting on

In this lesson, the first of a seven-part unit from Illuminations, students model subtraction with connecting cubes while the teacher reads to them from counting books. Then students make a train of connecting cubes and write in vertical and horizontal... (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Counting back and counting on

This lesson, one of a six-part unit from Illuminations titled “Links Away,” focuses on the counting model for subtraction. Students model numbers as a counting book is read. They then make a chain of links and write in vertical and horizontal... (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Counting to find sums

This lesson, one of a six-part unit from Illuminations titled “Do it with Dominoes,” focuses on the “counting” model for addition and begins with reading a counting book. Students model the numbers with counters as the book is read.... (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations

Exploring adding with sets

This lesson, one of a six-part unit from Illuminations titled “Do It with Dominoes,” builds on lessons one and two and encourages students to explore another model for addition, the “familiar set” model. This model is similar to... (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

Exploring equal sets

This lesson, the third of an eight-part unit from Illuminations titled “Multiplying Meanings,” encourages students to explore the set model as a method for multiplication. Reading the children's book What Comes in 2's, 3's, and 4's... (Learn more)

Format: lesson plan (grade 2–3 Mathematics)

Provided by: Illuminations

Fact families

In this lesson, the fifth of a six-part unit from Illuminations, students use books and connecting cubes to explore the relationship of addition to subtraction. Students search for related addition and subtraction facts for a given number using a virtual... (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

Fact family fun

In this lesson, one of a six-part unit from Illuminations titled “How Many More Fish?,” the relation of addition to subtraction is explored with fish-shaped crackers. The students search for related addition and subtraction facts for a given... (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

The factor game

In this activity, students play a game in which winning strategies involve distinguishing between numbers with many factors and numbers with few factors. Illuminations provides an activity sheet and an applet to complete this lesson. After the teacher demonstrates... (Learn more)

Format: lesson plan (grade 3–4 and 6–7 Mathematics)

Provided by: Illuminations

Finding addition patterns

In this lesson, one of a five-part unit from Illuminations titled “Let's Learn Those Facts,” a game encourages students to find the sums of two one-digit numbers. Students explore commutativity and examine addition patterns. Then they record... (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

Finding fact families

In this lesson, one of a seven-part unit from Illuminations titled “Links Away,” students explore the relation of addition to subtraction. Then the children search for related addition and subtraction facts for a given number. They also investigate... (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

Finding fact families

In this lesson, one of a six-part unit from Illuminations titled “Do It with Dominoes,” the relationship of subtraction to addition is introduced with a book and with dominoes. Then the children explore the concept of missing addends. They also... (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

Finding products

Students continue to examine the role of commutativity and the multiplicative identity, play a multiplication game, and explore products where one of the factors is 6. Using resources provided by Illuminations, students practice their multiplication tables... (Learn more)

Format: lesson plan (grade 3–4 Mathematics)

Provided by: Illuminations

Finding sums to six

In this lesson, one of a five-part unit from Illuminations titled “Let's Learn Those Facts,” students discover the role of the additive identity and explore sums to six. They continue to fill in their personal addition chart. (Learn more)

Format: lesson plan (grade 1–2 Mathematics)

Provided by: Illuminations

Finding the balance

In this lesson, one of a seven-part unit from Illuminations titled “Links Away,” students explore another model of subtraction, the balance. Students also explore recording the modeled subtraction facts and the related addition facts in equation... (Learn more)

Format: lesson plan (grade K–2 Mathematics)

Provided by: Illuminations