by The Investigations 3 Center Team | Nov 2, 2018 |

Question: Can the Investigations units be taught in a different order than suggested? Answer: The first edition of Investigations was written as a “replacement unit” model where individual units within a grade were somewhat less dependent on previous units, and...
by The Investigations 3 Center Team | Apr 9, 2018 |

Question: Why did you decide to use the exclusive definition of a trapezoid? As the question suggests, there is more than one definition of a trapezoid. Mathematicians define trapezoids in one of two ways: Using the inclusive definition, all parallelograms (which...
by The Investigations 3 Center Team | Feb 5, 2018 |

Question: Why do the assessments of the multiplication facts in Grade 3 include a time limit? In Investigations, the overwhelming majority of students’ work with the facts is focused on making meaning of the operation of multiplication, building connections between...
by The Investigations 3 Center Team | Nov 9, 2017 |

Question: Why does 3rd grade start with a multiplication/division unit and not addition/subtraction? Answer: We often hear from people who wonder why Grade 3 starts with a multiplication and division unit—just like it did in the 1st edition!—rather than an addition...
by The Investigations 3 Center Team | Nov 6, 2017 |

As we said in the original post, our ideas for our blog are wide-ranging. We are excited to have a space that offers us the opportunity to answer common questions from the field. This Q&A is the first of that type of blog post. Have questions you’d like to see...