EDSC 011, Spring 2011

Lesson Topic:  Basic Arithmetic

Vermont State Standard:

Standard 7.6: Arithmetic, Number, and Operation Concepts   

MHS: 1 Accurately solves problems involving conceptual understanding and magnitude of real numbers, or  simple vectors.

MHS: 2 In high school, MHS: 1 and MHS: 2 have been combined and extended in MHS: 1.

NECAP M(N&O)–10–2 Demonstrates understanding of the relative magnitude of real numbers by solving problems involving ordering or comparing rational numbers, common irrational numbers (e.g.,, ), rational bases with integer exponents, square roots, absolute values, integers, or numbers represented in scientific notation using number lines or equality and inequality symbols.

MHS: 3 No MHS: 3 at this grade level

MHS: 4 Accurately solves problems involving proportional reasoning or percents involving the effect of changing the base, rate, or percentage (the three cases of percent), or variations on order of finding percentages (10% off followed by 5% off), and compound interest.

 (IMPORTANT: Applies the conventions of order of operations.)

NECAP M(N&O)–10–4  Accurately solves problems involving rational numbers within mathematics, across content strands, disciplines or contexts (with emphasis on, but not limited to, proportions, percents, ratios, and rates).

MHS: 5 No MHS: 5 at this grade level

MHS: 6 No MHS: 6 at this grade level

MHS: 7 Estimates and evaluates the reasonableness of numerical computations and solutions, including those carried out with technology.

a.     MHS: 8 Applies properties of numbers (greatest common factor [GCF], least common multiple [LCM], prime factorization, inverses, and identities), or properties of operations to solve problems and to simplify computations.

Learning Objectives, including enduring understanding:

a.     The big ideas of this lesson will be taking percentages and writing this in different formats for example, the different formats of ratios.

b.    Students will be able to take percentages of different numbers, not exclusively out of 100.

c.     Students will be able to see how this math can be used in every day life!  We will use real examples from stores and their sales.

Instructional Procedures:

a.     Each student will use the smartboard to present a specific website of a store that sells items.  For example, Sears, Kohls, Bloomingdales, etc.  They will then find one example of a given sale using a certain percentage off of the item or percentage of a rebate given back.  We will use this sale as an example to figure what the current price is of a particular item given the sale.