## Common Core State Standards for Mathematics

Grade(s) K-12 resources related to the following standard:
Standards for Mathematical Practice
Look for and express regularity in repeated reasoning.

 Showing 41-50 of 285 resultsResults per page: 10515202550 Sort by: TitleRatingNewest First
ResourceResource Type
Rating
This interactive Flash lesson helps students to distinguish triangles from other shapes in a real world environment. The animated pages give printed instructions in English. A teacher guide is available [see #7 at MathActive Lessons for Grades K-2 (cataloged separately)].
Activity, Interactive Media
This problem introduces children to algebra by looking for a pattern and generalizing with a rule. Students explore in how many different ways can a stick of 6, 7 or 8 different colored interlocking cubes be broken into two parts. The Teachers' Notes page offers rationale, suggestions for implementation, discussion questions, and an idea for support and extension.
Activity
In this lesson plan students watch a video clip of Bianca as she uses Venn diagrams to try to satisfy three people's preferences in pizza toppings. Students practice using Venn diagrams to represent the pizza topping preferences. Learners are then introduced to prime numbers, prime factorization, and the use of Venn diagrams to determine least common multiple and greatest common factor. Support materials are included: Handout: Gleamers and Glow Power, Assessment: Levels A and B and answer keys are provided.
Lesson Plans, Video
Grade Level: 3, 4, 5, 6+
This interactive flash applet provides an opportunity for students to investigate relationships between numbers and to think algebraically. The learner chooses a building design from one of the six possible designs. Each design shows the number of blocks on the top floor and the number of blocks on each of the floors below. The student must determine the number of blocks needed to build the number of floors given. The help button asks the student to think of a "formula" for the design and with continued clicks, hints to find the formula are provided.
Activity, Interactive Media
This sequence of eight lessons from Illuminations provides an opportunity for students to represent patterns in different ways. Students solve problems; make, explain, and defend conjectures; make generalizations; and extend and clarify their knowledge. In Lesson 1 and 2 students recognize, sort, and identify rules for sorting. In Lesson 3 learners identify the core element or unit that is repeated. In Lesson 4 students create patterns and represent them using different forms: pattern blocks, actions, objects, pictures, letters and numbers. In Lesson 5 and 7 students use an Internet-based calculator that is linked with an interactive Hundreds Chart to create, extend, and record numerical patterns in different ways. In Lesson 6 students create patterns with movement and song. The last lesson, Lesson 8 is designed as a summative assessment of students understanding of patterns.
Activity, Lesson Plans, Unit of Instruction
This sample constructed response problem for grade 3-5 students provides an opportunity to analyze patterns and develop algebraic thinking in the context of a telephone chain. It includes suggestions for adjusting the challenge level and a task-specific rubric with annotated samples of student work at each level. Free registration allows users to download a 9-page print-friendly version (pdf).
Assessment, Activity
Resource is part of a PD collection
This formative assessment lesson is intended to help teachers assess how well students are able to use addition and subtraction in a problem solving situation. In particular, this lesson aims to identify and help students who have difficulties with: choosing an appropriate, systematic way to collect and organize data, examining the data and looking for patterns and lastly describing and explaining findings clearly and effectively.
Activity, Lesson Plans
Grade Level: K, 1, 2, 3