## Goessel USD 411 ### Jr./Sr. High

Working... Instruction in 6th grade math will focus on four critical areas:

1. connecting ratio and rates to whole number multiplication and division and using concepts of ration to solve problems
2. completing understanding of division of fractions and extending the notion of number to the system of rational numbers, which includes negative numbers
3. writing, interpreting, and using expressions and equations
4. developing understanding of statistical thinking

Students in grade 6 also build on their work with area by reasoning about relationships among shapes to determine area, surface area, and volume. They find areas of triangles, other triangles, and special quadrilaterals by decomposing these shapes, rearranging or removing pieces, and relating the shapes to rectangles.  Using these methods, students discuss, develop, and justify formulas for areas of triangles and parallelograms,  Students find areas of polygons and surface areas of prisms and pyramids by decomposing them into pieces whose area they can determine,  They reason about right rectangular prisms with fractional side lengths to extend formulas for the volume of a right rectangular prism to fractional side lengths.  They prepare for work on scale drawings and construction by drawing polygons in the coordinate plane.

Students will continue mathematical practices from elementary school.

1. Make sense of problems and persevere in solving them
2. Reason abstractly and quantitatively.
3. Construct viable arguments and critique the reasoning of others.
4. Model with mathematics.
5. Use appropriate tools strategically.
6. Attend to precision.
7. Look for and make use of structure.
8. Look for and express regularity in repeated reasoning.