Estimation Meets Math Mysteries

Introducing Esti-Mysteries! Each image invites students to wonder what number is represented by the image. As you click through the each Esti-Mystery, clues will appear that will allow the students to use math concepts to narrow the set of possibilities to a small set of numbers. In the end, the students will need to call upon their estimation skills to solve the mystery and find the missing number.

Level 100 (Grades K-2)
Level 200 (Grades 1-3)
Level 300 (Grades 3-8)
Level 400 (Grades 3-12)

-AAA Math features a comprehensive set of thousands of interactive arithmetic lessons.

-There is no cost or registration required to practice your math on the AAAMath.com web site.

-Unlimited practice is available on each topic which allows thorough mastery of the concepts.

-A wide range of lessons (Kindergarten through Eighth grade level) enables learning or review to occur at each individual's current level.

-Immediate feedback prevents practicing and learning incorrect methods, which is a common result of traditional homework and worksheets. Practice can continue as long as desired in a non-threatening format which helps build self-esteem and confidence.

-Please feel free to try the lessons by clicking on one of the grades at the top or a topic area on the left side of the page.

-Remember to add the site to your Favorite Places and please tell others about the site. It is an excellent way to learn or review math.

Included are the support materials for Grade 2 Blended Learning Math - Unit 3.10: Mental Math - 1 Less, 2 Less:
- YouTube video on using mental math to determine 1 less and 2 less
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3

Included are the support materials for Grade 2 Blended Learning Math - Unit 3.9: Mental Math - 1 More, 2 More:
- YouTube video on using mental math to determine 1 more and 2 more
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3

The purpose of this lesson is to introduce and activate prior knowledge about addition and subtraction.

Included is a YouTube video to support Grade 3 Blended Learning Math - Unit 3.0: Addition and Subtraction - Introduction

The purpose of this lesson is to use mental math strategies to subtract.

Included is a YouTube video to support Grade 3 Blended Learning Math - Unit 3.10: Addition and Subtraction - Using Mental Math to Subtract and a YouTube video on Mental Math Strategies.

The purpose of this lesson is to use strategies and properties for basic addition facts.

Included is a YouTube video to support Grade 3 Blended Learning Math - Unit 3.1: Addition and Subtraction - Strategies for Addition Facts

The purpose of this lesson is to use mental strategies to add.

Included is a YouTube video to support Grade 3 Blended Learning Math - Unit 3.6: Addition and Subtraction - Using Mental Math to Add

The purpose of this lesson is to use personal strategies to mentally add 3 and 4-digit numbers.

Included is a YouTube video to support Grade 4 Blended Learning Math - Unit 2.5: Whole Numbers - Using Mental Math to Add.

The purpose of this lesson is to use skip counting to multiply mentally.

Included is a YouTube video to support Grade 4 Blended Learning Math - Unit 3.3: Multiplication and Division - Using Skip Counting to Multiply.

The purpose of this lesson is to use patterns to multiply a 2-digit number by a 1-digit number.

Included is a YouTube video to support Grade 4 Blended Learning Math - Unit 7.5: Multiplication and Division of Larger Numbers - Using Patterns to Multiply.

The purpose of this lesson is to explore strategies for multiplying mentally.

Included is a YouTube video to support Grade 5 Blended Learning Math - Unit 3.5: Multiplying and Dividing Whole Numbers - Using Mental Math to Multiply.

Challenge first graders with math problems that will help them master first-grade math skills! In first grade, students learn about money, time, measurements, and patterns. Building a solid number sense is important for students in this age range. First graders learn to recognize patterns and sort objects by color, shape, and function. They will also learn to recognize and differentiate between two-dimensional and three-dimensional geometric shapes like squares, triangles, cones, and cylinders. By the end of first grade, students should be able to count to one hundred by ones, twos, fives, and tens. They will also be introduced to the concepts of more and less, and have an opportunity to work with simple graphs.

Now that your child has mastered numbers and counting, it's time to take things to the next level with our first-grade math worksheets! Keep students' math minds sharp with daily first-grade math and critical thinking practice worksheets as well as daily homework and practice pages. Weekly word problems, first-grade algebra and geometry, counting and comparing numbers, and introduction to addition are just some of the engaging, no-prep first-grade math worksheets available on this page.

"This guide is intended to support teachers’ ongoing efforts in building students’ knowledge and skills in mathematics. It focuses attention on the content of expectations in The Ontario Curriculum, Grades 1–8: Mathematics, 2005 that deal with fundamental mathematics concepts and skills (specifically, expectations in the Number Sense and Numeration strand and expectations that relate to number properties in the Patterning and Algebra strand). The guide outlines steps to achieving the knowledge and skills described in these expectations and suggests how to make more timely connections that will better support student learning. A strong foundation in the concepts and skills emphasized here will prepare students for success in high school, and ensure that they have a set of essential skills for employment and responsible citizenship in the future."

There are excellent charts included that organize foundational skills by grade grouping. These charts start on page 5.

These resources can help you develop a plan for teaching foundational or basic facts in math.

These strategies support active student participation in math lessons and allow teachers to assess the developing proficiency levels of all students in the class by walking around to monitor student responses. These strategies are especially effective during the Mental Math part of an Everyday Mathematics lesson.

"Free Printable Math Worksheet Sampler Packs - Need a quick resource for your students to practice their math skills? The sampler packs below are available for free with no login required!"

Grades K-9 + Algebra & Geometry.

Jumbo Math Worksheets Pack

Challenge your kindergarteners to math worksheets that will inspire them to learn to be creative as they count by 5s, 10s, learn numbers to 100, and start to add and subtract small numbers. Lots of handwriting number practice and fun math problems to solve in these kindergarten math worksheets.

The resources include: weekly math review booklets, Kindergarten Math Minutes, math worksheets, monthly math challenge booklets, addition, math enrichment, hundreds charts, math facts, number sense, patterns, place value, subtraction, mental math, geometry, ordering, counting, number lines, calendar skills, comparing numbers, color by number, color by addition, color by subtraction, skip counting, number mazes, shape mazes, matching, grids, greater than/less than, and hundreds chart.

My goal for this year was to add math games to my repertoire of teaching strategies as part of my regular classroom routine. I looked at this as the first step to moving towards a guided math program. Also our PLT group was working on ways to increase the level of math fact knowledge in addition, subtraction, multiplication and division. The Saskatchewan Curriculum recognizes that “mental mathematics is a combination of cognitive strategies that enhance flexible thinking and number sense. It is calculating mentally and reasoning about the relative size of quantities without the use of external memory aids. Mental mathematics enables students to determine answers and propose strategies without paper and pencil. It improves computational fluency and problem solving by developing efficiency, accuracy, and flexibility.” I also wanted to increase opportunities for communication and collaboration. Some of my math games involved building, creating and problem solving. Others involved competition and cooperation. I created a brochure that highlighted the favorite games of the students and it also provides links where teachers can find these games.

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