id: 06617849
dt: j
an: 2016e.00775
au: Foster, Colin
ti: Expression polygons.
so: Math. Teach. (Reston) 109, No. 1, 62-65 (2015).
py: 2015
pu: National Council of Teachers of Mathematics (NCTM), Reston, VA
la: EN
cc: H33 D53
ut: linear equations; formative assessment; elementary algebra; manipulation of
expressions; solving equations; student activities; problem posing;
polygons; creativity; problem solving; discussion
ci:
li:
ab: From the text: Solving linear equations, an important mathematical
technique at the core of the Algebra 1 curriculum, forms an essential
foundation for more advanced work. Too often, developing fluency with
linear equations entails plowing through pages of repetitive exercises.
How can students master this topic while using their mathematical
sense-making faculties? In addition to generating essential practice
with the technique of solving linear equations, this lesson on
expression polygons engages students in authentic mathematical
thinking. The expression polygon task is a rich task that students of
all ages from grade 6 upward can access.
rv: