## Geometry Resources

**Acute/Obtuse Angle generator**

Students generate random obtuse or acute angles.

**Illuminations: Figuring in Football**

**Illuminations: Investigating Shapes (Triangles)**

**Illuminations: I’ve Seen That Shape Before**

**Illuminations: Ladybug Adventures**

**Navigating Through Geometry in Pre-kindergarten–Grade 2**

National Council of Teachers of Mathematics. (2001). *Navigating through geometry in pre-kindergarten–grade 2.* Reston, VA: Author.

Focusing on the important ideas of geometry, this book shows how to investigate 2- and 3-dimensional shapes with very young students. It introduces methods to describe location and position, explores simple transformations, and addresses visualization, spatial reasoning, and the building and drawing of constructions. Activities in each chapter pose questions that stimulate students to think more deeply about mathematical ideas.

## Measurement Resources

**Illuminations: Exploration of a Balance**

**Illuminations: Ladybug Lengths**

**Illuminations: Magnificent Measurement**

**Illuminations: What Should I Measure Next? How About Me!**

**Navigating Through Measurement in Prekindergarten–Grade 2**

Dacey, L., Cavanagh, M., Findell, C. R., Greenes, C. E., Sheffield, L. J., & Small, M. (2003). *Navigating through measurement in prekindergarten–grade 2.* Reston, VA: National Council of Teachers of Mathematics.

This book introduces students in grades PreK-2 to the basic ideas of comparing and ordering lengths, weights, time and capacities. It includes engaging hands-on activities that develop these ideas, along with the concepts of units and measure and the use of measurement tools. Explorations with various nonstandard and standard units lead students to generalize the measurement process as the assigning of a numerical value to an attribute of an object or event.

## Children’s Literature

**A Cloak for the Dreamer**

Friedman, A. (1994). *A cloak for the dreamer.* New York, NY: Scholastic Inc.

Students will learn about patterns and relationships with shapes.

**Let’s Fly a Kite**

Murphy, S., & Floca, B. (2000). *Let’s fly a kite.* New York, NY: Harper Collins Publishers.

Students will learn about the math concept of symmetry.

**Measuring Penny**

Leedy, L. (2000). *Measuring penny.* New York, NY: Henry Holt and Co.

In this children’s book, Lisa has an important homework assignment—to measure something in several different ways. She decides to measure her dog, Penny, and along the way learns a lot about her dog and measuring…and even has fun doing it!

**Inch by Inch**

Lionni, L. (1960). *Inch by inch.* New York, NY: Harper Collins Publishers.

In this classic children’s book, an inchworm escapes being eaten by a robin using his ability to measure inches.

**Just a Little Bit**

Munsinger, L., & Tompert, A. (1993). *Just a little bit.* Boston, MA: Houghton Mifflin Company.

In this children’s book, Mouse and Elephant need a lot of help from the other animals to make the see-saw go up and down.

### Resources for Learning about Macaws and Toucans

**National Geographic**

**Enchanted Learning**

### Resources for Learning about the Rainforest

## General Mathematics Resources

**Principles and Standards for School Mathematics**

National Council of Teachers of Mathematics. (2000). *Principles and standards for school mathematics.* Reston, VA: Author.

This book is the seminal document on developing mathematical knowledge in students in grades Pre-K to 12. The six principles outlined address overarching themes across the curriculum. The 10 standards include both content and process standards and describe a connected body of mathematical understanding and competencies recommended for all students. Widely cited, these standards are the basis for most state curriculum objectives.

**Curriculum Focal Points for Pre-K–Grade 8 Mathematics: A Quest for Coherence**

National Council of Teachers of Mathematics. (2000). *Curriculum focal points for pre-K–grade 8 mathematics: A quest for coherence.* Reston, VA: Author.

This publication is offered by NCTM as a starting point in a dialogue on what is important at particular levels of instruction and as an initial step toward a more coherent, focused curriculum. At each grade level three important focal points on mathematical topics are outlined. These areas of instructional emphasis can serve as organizing structures for curriculum and instruction at and across grade levels.

**Classroom Discussions: Using Math Talk to Help Students Learn, Grades 1-6**

Chapin, S. H., O’Connor, C., & Anderson, N. C. (2009). *Classroom discussions: Using math talk to help students learn, grades 1-6* (2nd ed.). Sausalito, CA: Math Solutions Publications.

This book introduces five discussion strategies that will help to strengthen students’ thinking and learning skills, as well as, their ability to build connections among mathematical ideas.

**The Young Child and Mathematics**

Copley, J. V. (2000). *The young child and mathematics.* Washington, DC: National Association for the Education of Young Children and National Council of Teachers of Mathematics.

This book addresses ways to teach mathematics to students Pre-K – Grade 2. It includes lessons on mathematics processes, numbers and operations, patterns, functions, algebra, geometry, spatial sense, data analysis, and probability.