+
Assessment
Curated OER

1999 U.S. National Chemistry Olympiad Part II

For Students 9th - 12th
A variety of topics including reaction rates, combustion reactions, periodic trends, and ionization reactions are included in this exam. Test takers also practice calculating empirical and molecular formulas of compounds.
+
Assessment
Curated OER

2001 U.S. National Chemistry Olympiad National Exam Part II

For Students 9th - 12th
Only eight problems are on this competitive national chemistry exam. It required the balancing of chemical equations, solving stoichiometry questions, and more. This is part two of three of the national exam. Also available is a local...
+
Assessment
Curated OER

2004 U.S. National Chemistry Olympiad Exam Part II

For Students 9th - 12th
In this National Chemistry Olympiad test, junior chemists answer eight problem solving questions on a variety of topics. These include calculating molarity of solutions, determining rates of reactions, calculating decay and discussing...
+
Interactive
Curated OER

Context Clues II Pretest

For Students 3rd - 5th
In this ESL context clues worksheet, students choose the answer that best defines a word that is given within the context of a sentence.
+
Lesson Plan
Curated OER

How Hot Is It?

For Teachers 4th
Fourth graders practice estimating temperatures. They practice in Celsius and Fahrenheit.
+
Lesson Plan
Curated OER

Water Anyone?

For Teachers 4th
Fourth graders measure cups, quarts, and liters.
+
Lesson Plan
Curated OER

Hickory Dickory Dock: The Biological Clock

For Teachers 11th - 12th
Students investigate the effect of day length on animal migrations. They view a Powerpoint presentation, identify their own personal migrations and cues, answer discussion questions, and test a hypothesis about seasons.
+
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Elapsed Time Finding the Start Time (Multiple Steps)

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] In this learning module, students must solve multi-step word problems by using elapsed time to calculate the starting time. Includes video demonstrating a sample...
+
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Elapsed Time Finding the Ending Time (Single Step)

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are given the elapsed time and must calculate the time something ended, using the 24-hour format. Includes video demonstrating a...
+
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Solving for Start Time End Time or Elapsed Time

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] The video involves filling in a chart of start time, end time, and elapsed time describing how to add and subtract time in hour and minutes. The video is followed by...
+
Lesson Plan
Alabama Learning Exchange

Alex: Calculating Elapsed Time With Time Rulers

For Teachers 3rd - 5th
Students will explore their prior knowledge of time, discuss fractional parts of an hour, and use a specialized time ruler to calculate elapsed time for real life situations.
+
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Finding the Time With a Timeline

For Students 3rd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] For this learning module, students must solve word problems involving elapsed time using a timeline. Includes video demonstrating a sample problem [0:52] and a set...
+
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Determining Duration Time

For Students 4th - 5th
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to solve multi-step word problems involving elapsed time. Includes video demonstrating a sample problem [1:28] and a set...
+
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Determining Elapsed Time With Fractions

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] For this learning module, students solve multi-step word problems involving time written in 24-hour format as well as fractions. Includes video demonstrating a...
+
Unknown Type
CK-12 Foundation

Ck 12: Elem Math: Telling the Time Before and After

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] A practice quiz where students must answer questions about elapsed time.
+
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Identifying Hourly Time Change

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] Students attempt practice problems on identifying hourly time changes.
+
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Determining Duration of Time One Step

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] For this learning module, students solve word problems involving time written in 24-hour format. Includes video demonstrating a sample problem [0:38] and a set of...
+
Unit Plan
CK-12 Foundation

Ck 12: Measurement: Addition and Subtraction With Time

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Find sums and differences of measurements of time by converting units.
+
Lesson Plan
Scholastic

Scholastic: Max's Math Adventures: The Snowball

For Teachers 2nd - 4th Standards
Join Max and Ruthie on a snow day math adventure and see how many things can happen in just one day. Teachers will like this lesson's approach to experiencing and telling time. Use the teacher's guide, activity sheet, and extra...
+
Unknown Type
Math Slice

Math Slice: Elapsed Time: Math Worksheets

For Students Pre-K - 1st Standards
Select a time interval, from one minute to one hour, and this tool creates a worksheet for you. Students must calculate the time interval between two clocks. You can then click on the 'New Worksheet' button at the top to create a fresh...
+
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Living in the Mill: Time

For Students 4th - 5th
On this interactive site students learn to read, interpret and use 24-hour time in real-life situations.
+
Activity
NumberNut

Number Nut: Breaking Up an Hour Into Minutes

For Students 2nd - 4th Standards
Build your measurement and time telling skills in this lesson where the hours are broken down into minutes. Lots of related vocabulary and common time referents presented. There are links available to interactive elapsed time and...
+
Unit Plan
Khan Academy

Khan Academy: Time Differences (Within the Hour)

For Students 2nd - 4th Standards
Practice finding the difference between times given on two analog clocks. Each time difference is less than 60 minutes, and the hour hand stays on the same hour. Students receive immediate feedback and have the opportunity to try...
+
Unit Plan
Khan Academy

Khan Academy: Telling Time Word Problems (Within the Hour)

For Students 2nd - 4th Standards
Solve a word problem to find the duration of an event. Both analog or digital clocks are included. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.