Instruction Flashcards
Integrated teaching
multiple concepts are used in problem-solving at once (current best practices)
Non-proportional manipulatives
objects that are not proportional to each other with respect to shape and size. Often all of the items are the same size.
ex: counting tokens
Informal Deduction (Geometric Learning Progressions)
Level 2. Students recognize attributes and properties that objects share and are able to follow logical arguments about the relationship among these properties.
Example: Problem solving that involves reasoning
teacher wait time
the silence that often comes after a question has been asked but before students have finished considering their answer and/or find the courage to speak up
line graph
a visual representation of data which shows change over time or in response to a manipulated variable
verbal representation
word problems and verbal descriptions of how to solve a problem or what the solution means
Example: “We know that Sam gets $10 each week for allowance, so let’s make that a constant. And we know that Sam wants to save $150 to buy a new bicycle, so that’s a constant, too. But, what we don’t know is how long does Sam need to save - let’s make that X. So the equation is 10x = 150.”
Rigor (geometric learning progressions)
Level 4. Students are able to work in different axiomatic systems.
Example: Writing mathematical proofs using formal language. A college level geometry course is taught at this level.
Decimal grid
a model used to visualize multiplication between a whole number and a decimal; involves a 10 x 10 grid in which each square represents 0.01 and the entire grid is equivalent to 1
concrete operational stage
the third stage of Piaget’s Theory of Cognitive development, occurring from 7 years old to adolescence, in which children begin to think logically and use inductive reasoning
Visualization (Geometric Learning Progressions)
Level 0. Shapes are recognized by their appearances. Students can’t identify specific attributes or properties of the shapes. They might identify some characteristics but are not able to use them to categorize or sort shapes.
Example: Working with different sizes of the same shape
Tape diagram
diagrams useful for visualizing operations with fractions; each rectangle is equivalent to 1 and subdivided into increments representing the numerators and denominators of fractions
Symbolic representation
A model using symbols or variables to display a mathematical concept.
Example: Formula
Bar graph
a visual representation of data which compares values in different categories
Example: the number of people who prefer each genre of movie
symbolic/representational stage
Drawing pictures or symbols to represent numbers in an equation
Example: Squares
Constructivism
Learning new behaviors by adjusting our current view of the world
Example: Research projects