Time Date Matters
1 Intro of Kids To Time Date Skills
2 Time and Date Matters in School
3 Units and Lengths of Time
4 Mixing and Changing Units of Time
5 Conversion Arithmetic
6 How long is a million seconds
7 Addition of Time Intervals
8 Addition of Time Intervals via subtotaling
9 Comparison and Subtraction of Time Intervals
010 Repeated Addition of Time Intervals
011 Division of Time Intervals By Numbers
012 Division of Time Intervals by Time Intervals
013 Travel Time Tables
014 Counting Days with Calendars
015 School and work day counting tables
016 Numbering Occidental Calendar Days
Notes on Time and Date Matters
Mathematics With Take Home Value
Every one has a birthday. Year round, daily life is governed
by seasons and the day of the week, what time to rise or eat, what time
to sleep, when to work and study and pray. School and work life are run
or organized around time or schedules. Events occur before, after
or the same time.
Section lessons review or cover how young children may met time in their
daily lives, school lives and work lives. Site coverage of time and date
matters and practices describe and serve common and likely needs.
Learning to add, compare, subtract, multiply and divide measures of time
with other lengths of time or numbers, with mixed units of time, reflects
daily life and sets the stage for arithmetic with numbers and units in
all application areas of mathematics.
This section (first draft) gives a destination and context for primary
and junior high school instruction in time and date matters.
Students, teachers and parents in reviewing this material and arithmetic
in general should be aware of the domino effect of errors and
approximations in calculations. That awareness, by itself, sets the stage
for greater care and patience in following and recording the steps of
mathematical methods.
Arithmetic Skills (26-07-2010)
-
Describe lengths of time in different units and switch between
different units.
-
Add, Compare and Subtract lengths of time.
-
Multiply: Form the product of lengths of time with numbers.
-
Divide lengths of time by each other and by numbers.
Revision History:
1. Posted online July 8-9th, 2010.
2. To Do(2010, June 10th): Add examples to
show that addition of lengths of time is associative and commutative; and
to re-enforce the arithmetic notion, that addition of counts and
measures may be done in any order and in any sequence.
3. 26-07-2010. Added arithmetic skills to index.html
|
|