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Math OER
Lecture Notes

The essence of mathematics resides in its freedom. To ask the right question is harder than to answer it.

- Georg Cantor

YouTube logo We have a YouTube Play List. There is also a playlist for Math 20 lectures from Winter term.

Drive logo On my LCC Google Drive is a public folder that contains all of our class board work in a Math 20 or Math 25 subfolder. Each file is saved twice, in both Jam and PDF formats. The Zoom videos, which have no playlist, are also archived here in case the Zoom cloud dies.

Math 20

Week 1, Monday Shapeshifting Rounding,
starting Fraction Format
Jamboard notes part 1 Jamboard notes part 2 Zoom video YouTube video
Week 1, Wednesday finish Fraction Format,
starting Percent Format
Jamboard notes part 1 Jamboard notes part 2 Zoom video YouTube video
Week 2, Monday finish Percent Format,
starting Measurement
Jamboard notes part 1 Jamboard notes part 2 Zoom video YouTube video
Week 2, Wednesday finish Measurement Jamboard notes part 1 Jamboard notes part 2 Zoom video YouTube video
optional for achievement try a Shapeshifting Topic Midterm Jamboard notes try using the Jamboard to work together
Week 3, Monday review Measurement,
start Mad Science Fractions
Jamboard notes part 1 Jamboard notes part 2 Zoom video YouTube video
Week 3, Wednesday grokking Fraction ×, ÷, +, − Jamboard notes part 1 Zoom video YouTube video
Week 4, Monday finish Fractions, start Percent Jamboard notes part 1 Jamboard notes part 2 Zoom video YouTube video
Week 4, Monday
Study Session
lots of HW stuff,
and a Simple Interest preview
Jamboard notes Jamboard notes blank for cooperative stuff not recorded
Week 4, Wednesday almost finish Percent Jamboard notes part 1 Jamboard notes part 2 Zoom video YouTube video
Week 5, Monday finish Percent (Simple Interest),
start Measurement (Unit Analysis)
Jamboard notes part 1 Zoom video YouTube video
(A)Synchronous, Hybrid, Blended, Flipped special discussion:
how to talk to instructors about distance learning
Jamboard notes Zoom video YouTube video
Week 5, Wednesday review of Simple Interest and Unit Analysis Jamboard notes part 1 Zoom video YouTube video
Week 6, Monday finish Measurement (polygons) Jamboard notes Zoom video YouTube video
Week 6, Monday finish Measurement (circles) Jamboard notes Zoom video YouTube video
Dissecting Multiplying special discussion:
why the multiplication algorithm works
Jamboard notes Zoom video YouTube video
Week 6, Wednesday geometry example problems,
practice test problems
Jamboard notes part 1 Zoom video YouTube video
optional for achievement try a Mad Science Topic Midterm Jamboard notes try using the Jamboard to work together
Week 7, Monday Justice one and two step equations, proportions Jamboard notes part 1 Jamboard notes part 2 Zoom video YouTube video
Week 7, Tuesday
Study Session
catch-up for Mad Science Fractions Jamboard notes part 1 not recorded
Week 7, Wednesday finish proportions Jamboard notes part 1 Zoom video YouTube video
Week 8, Monday
Study Session
RIP LOP, one step equations, fraction × and ÷, Jamboard notes part 1 not recorded
Week 8, Wednesday percent sentences, temperature Jamboard notes part 1 Zoom video YouTube video
optional for achievement try a No Calculator Test Jamboard notes try using the Jamboard to work together
Week 9, Monday deer problem, Area puzzles, negatives Jamboard notes part 1 Zoom video YouTube video
optional for achievement try a Justice Topic Midterm Jamboard notes try using the Jamboard to work together
Week 9, Wednesday work through a practice final Jamboard notes part 1 Zoom video YouTube video
help each other study! collaborate on notes with this Jamboard Jamboard notes thans for working together!

Math 25

Week 1, Tuesday Health Decisions Patterns, start Calories Jamboard notes Zoom video YouTube video
Week 1, Thursday finish Calories, all of Metabolism, start Food Preparation Jamboard notes Zoom video YouTube video
Week 2, Tuesday finish Food Preparation Jamboard notes Zoom video YouTube video
Week 2, Tuesday
Study Session
did lots of Health Decisions HW Jamboard notes not recorded
optional for achievement try a Health Decisions Midterm Jamboard notes try using the Jamboard to work together
Week 2, Thursday review Calories,
start Personal Finance Decisions Typicality
Jamboard notes Zoom video YouTube video
Week 3, Tuesday review day using a practice final Jamboard notes Zoom video YouTube video
Week 3, Tuesday
Study Session
did Food Prep. HW #8 and similar problems Jamboard notes Zoom video YouTube video
Week 3, Thursday review Food Prep and Typicality, do Mortgages Jamboard notes Zoom video YouTube video
Week 4, Tuesday finish Mortgages, review Percent Sentences Jamboard notes Zoom video YouTube video
Week 4, Thursday HW questions, review Percent Sentences, Simple Interest Jamboard notes Zoom video YouTube video
Week 5, Tuesday Simple and Compound Interest Jamboard notes Zoom video YouTube video
Week 5, Thursday Simple and Compound Interest, and Sum of Annuity Due Jamboard notes Zoom video YouTube video
Week 6, Tuesday Saving for Retirement Jamboard notes Zoom video YouTube video
optional for achievement try a Personal Finance Decisions Midterm Jamboard notes try using the Jamboard to work together
Week 6, Thursday review of Saving for Retirement Jamboard notes Zoom video YouTube video
Week 7, Tuesday Markup, Margin, most of Pricing Jamboard notes Zoom video YouTube video
Week 7, Thursday more Margin, Markup, and Pricing Jamboard notes Zoom video YouTube video
Week 7, Friday
Study Session
did some HW problems Jamboard notes not recorded
Week 8, Tuesday Charge Options, Fair Spinner Games Jamboard notes Zoom video YouTube video
Week 8, Thursday Probability, Odds, Changes, Weighted Averages Jamboard notes Zoom video YouTube video
Week 8, Saturday
Study Session
did some HW problems Jamboard notes not recorded
Week 9, Tuesday review week day one Jamboard notes Zoom video YouTube video
optional for achievement try a Business Decisions Midterm Jamboard notes try using the Jamboard to work together
Week 9, Thursday review week day two Jamboard notes Zoom video YouTube video
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