Search Results
Showing results 1 to 20 of 53
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-178.png?itok=sHk61bRz)
Lean, Mean Information Machine: Using a Simple Model to Learn about Chromosomal DNA
Source Institutions
Learners observe a model of a cell and its chromosomal DNA made from a plastic egg and dental floss. Use this model to illustrate how much DNA is held in one cell.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-092.jpg?itok=UOZIQ6pk)
The Boxes Go Mobile
Source Institutions
Learners display their findings after a study of surface area and volume. They build a mobile to show a commercially available box and a constructed cubical box of the same volume.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-723.png?itok=z4Sz0gIu)
Geometry and Spatial Relations: Mirror, Mirror
Source Institutions
In this math lesson, learners use hinged mirrors to discover that regular polygons are composed of triangles tessellating around a center point.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-292.png?itok=lBAZGqxj)
Deer Me: A Predator/Prey Simulation
Source Institutions
In this activity, learners will simulate the interactions between a predator population of gray wolves and a prey population of deer in a forest.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-144.jpg?itok=xNxO-iqW)
Let's Clone a Mouse, Mouse, Mouse...
Source Institutions
Somatic Cell Nuclear Transfer (SCNT) is a cloning method that involves transferring a nucleus from a somatic cell of the individual to be cloned to an enucleated egg.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-469.png?itok=iVnyCjkY)
A Model Parasite
Source Institutions
In this detailed activity (on pages 9-18), learners investigate the body parts of a parasitic ascaris worm by making and dissecting clay models.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-108.gif?itok=-khPHX2n)
Take a Hike!: A Family Forest Walk
Source Institutions
In this family or group inquiry activity, learners use their senses to explore a local forest or woodland.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-898.jpg?itok=mG-SZMEy)
Carbon Sequestration
Source Institutions
In this inquiry-based lesson, learners measure the biomass of trees, calculate the carbon stored by the trees, and use this information to create recommendations about using trees for carbon sequestra
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-255.png?itok=D9_EKQ86)
How Quick Are Your Responses?
Source Institutions
In this activity (on page 134 of the PDF), learners explore reaction time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-094.jpg?itok=utnSeEC9)
Why Doesn’t the Ocean Freeze?
Source Institutions
In this activity, learners explore how salt water freezes in comparison to fresh water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-142.jpg?itok=PP-St5l9)
It's a Gas, Man
Source Institutions
In this activity, learners discover if carbon dioxide has an effect on temperature.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-042.png?itok=IiLzTyut)
Proportionality: The X-Plane Generation
Source Institutions
In this activity, learners build a 1:140 "scale model" of NASA's X-33 Reusable Launch Vehicle (RLV) Technology Demonstrator, and investigate how the model dimensions compare to the real vehicle.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-557.png?itok=vQ1X7kdB)
Exploring a Complex Space-Filling Shape
Source Institutions
In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star.
Sea State: Forecast Conditions at Sea
Source Institutions
In this oceanography and data collection activity, learners cast real time sea state conditions using buoys from NOAA's National Data Buoy Center.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-469.png?itok=_RWTNHPs)
NEWspaper: Make Your Own Paper
Source Institutions
Learners make their own paper using old newspaper. Learners can make their paper colorful by adding construction paper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-111.png?itok=cm_dErWp)
Pedal Power
Source Institutions
In this engineering activity, learners examine bicycle mechanics and gear ratios. Learners determine which gears will help them bike a set course in the shortest amount of time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-943.jpg?itok=bVPNX-LN)
Calendarios para cualquier año
Source Institutions
Este Web site contiene links a 12 calendarios (12 meses). Cada mes contiene actividades sobre matemáticas.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-496.jpg?itok=E2uYD8qy)
Gravity Fountains
Source Institutions
This activity (located on page 3 of the PDF under GPS: Glaciers Activity) is a full inquiry investigation into the forces of gravity and air pressure.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-315.gif?itok=Tckj8Khu)
My Angle on Cooling: Effects of Distance and Inclination
Source Institutions
In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-310.jpg?itok=na4Zw7hj)
Dogs and More Dogs
Source Institutions
In this activity, learners play an evolution card game to see how selective pressures can affect an organism's evolution.