Standards for Mathematical Practice

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Resource | Resource Type Grade Level | Rating |
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This interactive applet helps students develop fluency and flexibility with numbers. At each of 6 difficulty levels the user is presented with 8 target numbers and a partial set of keys on a basic calculator (does not follow order of operations). The goal is to use the given keys to make as many of the target numbers as possible within the 3-minute time limit. Some levels include memory keys. | Activity, Interactive Media Grade Level: 3, 4, 5, 6+ | |

In this Cyberchase interactive simulation students help the Cybersquad gather bugs to create a bar graph by sorting the bugs into the correct columns by color. Once three graphs have been created they are prompted to answer a question comparing the graphs, all of which have different scales. The simulation includes instructions and hints. | Interactive Media Grade Level: 3, 4, 5 | |

In this series of three lesson plans, students create bar graphs, double bar graphs, and determine appropriate intervals for scale. Each lesson incorporates teacher modeling, student practice (students have an opportunity to label and create the scale for their own graphs), assessment (including rubrics), and reteaching or extension options. | Assessment, Lesson Plans, Unit of Instruction Grade Level: 2, 3 | |

In this interactive application young children become familiar with 3-dimensional shapes by matching a variety of shapes in order to build a sandcastle. There are two levels of play, parent pointers, and hints to help out along the way. | Activity, Interactive Media Grade Level: Pre-K, K | |

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 3 lesson instructional unit helps students investigate many different aspects of triangles including basic properties of triangles, building other shapes from triangles, the dependence of the third side length on the other two (Triangle Inequality Theorem), and the Sierpinski Triangle fractal. The lesson includes student activity sheets and links to interactive applets. | Activity, Interactive Media, Lesson Plans Grade Level: 3, 4, 5 | |

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 Grade Level: 3, 4, 5 Resource is part of a PD collection | |

In this number sorting activity students must use a Carroll Diagram to determine which two categories each number fits into. This activity can be completed in pairs or groups on printable versions or it can be completed as a whole class using the interactive white board (IWB). Included with this resource are printable versions of the Carroll Diagrams, guiding questions, extension and support suggestions, and a link to more challenging "More Carroll Diagrams". | Activity Grade Level: 1, 2 | |

This Web unit introduces the coordinate plane with the help of Sam the Chameleon, who illustrates how to find points on a number line and graph points in the coordinate plane. A link to a Java applet for graphing with Sam is included. | Tutorial, Unit of Instruction, Reference Materials Grade Level: 4, 5, 6+ | |

This interactive Java applet helps students understand place value and regrouping. Base 10 is the default, but users may choose to work in base 2 or 5. A user places (or removes) chips of three colors in three columns to represent numbers of up to three digits. When the number of chips in any column equals the base number, the user can exchange them for a chip in the next column. Similarly a chip of a higher value can be exchanged for the base number of chips of the lower value. The applet can be used to model addition and subtraction with regrouping. | Activity, Interactive Media Grade Level: 1, 2, 3, 4, 5, 6+ |