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Home > Elementary Solutions > Elementary Classroom Math > Straight Curve® Mathematics Series 2
Elementary Math
Straight Curve® Mathematics Series 2
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Straight Curve Mathematics Series 2 is the pioneering, award-winning supplemental classroom tool designed to enrich on-grade-level and advanced mathematics curriculum and provide deeper instructional focus on the concepts that teachers find most challenging to instruct and that students in grades K–6 find most difficult to master within the NCTM strands of:

  • Numbers and Operations
  • Algebra
  • Geometry
  • Measurement
  • Data Analysis and Probability

Straight Curve Mathematics is designed specifically to support the classroom teacher and equip them with best-practice techniques for presenting math concepts. The curriculum maps to the nation’s top textbooks for flexible, easy integration into the classroom, and teacher support materials are embedded online into each level of instruction to save teachers preparation time.

It is also an ideal professional development resource for educators as it provides refresher lessons and skill building for teachers who do not have an in-depth mathematics background.


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Technical and White PapersTechnical and White Papers:
Sample LessonsSample Lessons:
  • Grade 3 - Measurement Days, Weeks, Months (Minilesson)
    The Minilesson begins by reviewing the units of calendar time. It then presents students with techniques for finding the number of elapsed days, weeks, and months between the start and end dates of various activities. They can either count the days or perform subtraction to find elapsed days. Finally, students find missing end dates when the start date and elapsed time for an activity are given. The Minilesson also provides opportunities for practice through multiple-choice questions and drag-and-drop activities.
  • Grade 3 - Measurement Days, Weeks, Months (Investigation)
    In the Warm-Up, students will use a camp schedule and calendar to review and practice finding elapsed times in days, weeks, and months. In the Challenge, groups of students will plan a vacation in which they stop in at least five destinations. Students have to identify on a calendar the dates they would like to take their trip and the number of days they will be stopping at different places. They will also find several elapsed times from their planned vacation.
  • Grade 3 - Measurement Days, Weeks, Months (Game)
    In this Game, construction materials and food items are stored in a darkened construction site closet. Players move the light source around the darkened closet and locate items whose expiration period is equivalent to the time on an order list.
  • Grade 4 - Adding Unlike Fractions (Minilesson)
    Students will explore addition of common fractions with the help of the circle tool and explore the process of adding fractions. They will use a model to represent the process of adding fractions. Then they will learn about unlike fractions and will use models to add unlike fractions.
  • Grade 4 - Adding Unlike Fractions (Investigation)
    In this Investigation, students will use area models to represent unlike fractions in the form of like fraction equivalents that can be added.
  • Grade 4 - Adding Unlike Fractions (Game)
    In this Game, students guide a submersible through a simulated underwater course. They will see a fraction problem on the computer screen of their submersible which is a code to help the player find the correct passage through the obstacle. Each passage through the obstacle is labeled with a possible answer to the code. Clicking the right answer enables the submersible to pass safely through the obstacle.
  • Grade 5 - Measurement Area and Perimeter (Minilesson)
    In this Minilesson, students will estimate and find the area and perimeter of rectangles, right triangles, and parallelograms.
  • Grade 5 - Measurement Area and Perimeter (Investigation)
    In this Investigation, students will find the area of rectangles, right triangles, and parallelograms and develop strategies for finding the area of compound figures.
  • Grade 5 - Measurement Area and Perimeter (Game)
    In this Game, students will find the area and perimeter of rectangles, right triangles, and parallelograms. Students will practice matching area and perimeter measurements and figures with particular area and perimeter values.
  • Grade 5 - Testing Predictions (Minilesson)
    This Minilesson focuses instructional activities around a snack bar. It begins by asking students to determine all possible outcomes of snack combos. Students go on to predict outcomes and test them by conducting experiments. Finally, students will compare their predictions to actual results. These activities ultimately show the relationship between theoretical and experimental probability. The Minilesson also provides opportunities for practice through multiple-choice questions.
  • Grade 5 - Testing Predictions (Investigations)
    In the Warm-Up, students will review three ways to organize the possible outcomes of an experiment—in a list, in a table, and in a tree diagram. In the Challenge, students will choose up to 10 objects, divide the objects into two groups, and determine the possible outcomes for picking one item from each group. Next, they’ll make predictions and use classroom manipulatives to design and conduct an experiment to test their predictions.
AwardsAwards:
  • 2007 ComputED Gazette , Best Educational Web Site - Upper Elementary Math
  • 2007 ComputED Gazette , Upper Elementary Math Web Site
  • 2006 ComputED Gazette , Upper Elementary Math Web Site
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