Mystery Class Reminder: February 2, 2001
Today's Report Includes:
Step Aside Mr. Groundhog!
The Groundhog may or may not see his shadow today, but wouldn't you rather predict
spring's arrival with your own eyes? Nothing personal Mr. Groundhog, but you can
step aside because the Journey North Mystery Class project is about to begin!
Right now we have 10 secret Mystery Classes hiding around the world, just waiting
for you to find them. Join in the global search, and try to uncover the locations
of these secret Mystery sites!
More Than a Shadow
Illustrations by Jodie M.
Using weekly data on changing sunrise and sunset times, and clues directly from the
Mystery Classes themselves, you'll have 11 weeks to try to answer this question:
"Where in the world do you think our 10 Mystery sites are located?"
No Hurt Feelings
So that Mr. Groundhog doesn't feel left out, you can still send a card to celebrate
Rise and Shine! Mystery Class Begins on Monday
Monday, February 5th is the first day of the Mystery Class project. Be sure to record
the sunrise/sunset times for your hometown.
On Friday, February 9th we will post the first sunrise & sunset data for the
mystery sites that are hiding around the globe. Over the next 11 weeks you'll be
asked to unlock the secret of their locations.
To help you get started, take a look at the detailed Mystery Class information provided
below, or see pp. 95-100 in the Teacher's Manual.
How to Participate in Mystery Class
Here's What You'll Do
1. Every Monday, between February 5 and April 16, record the time the sun
rises and sets in your hometown. Your local newspaper should provide this information,
or you may find it in a calendar from your area. Alternatively, look up sunrise/sunset
times on the WWW:
2. Calculate photoperiod by counting the number of hours and minutes the
sun is up. For example, if the sun rises at 6:50 a.m. and sets at 17:30 p.m., the
photoperiod for that day is 10 hours and 40 minutes.
3. Record the sunrise and sunset times and the photoperiod for each Monday
at your hometown on a Mystery
Class Datasheet. Then plot the photoperiod of your hometown on a Mystery
Do NOT send your local sunrise & sunset data to Journey North!
4. Every Friday, we will post the sunrise and sunset data from our 10 Mystery
classes. Notice: The data you receive on FRIDAYS will have been collected on the
same MONDAYS your readings were collected. Many teachers divide their class into
10 groups, and give each group responsibility for a Mystery Site. To provide practice
for your student groups, use your local photoperiod as an example.
5. Make 10 copies of the Mystery Class Datasheet. Record the data from each
Mystery Class site on a separate Datasheet and calculate the photoperiod. Then plot
the photoperiod from each Mystery Class on your graph. Use a different colored pencil
for each Mystery Class. (You may want to make a large, poster-sized graph for your
class, where student groups could plot their respective sites.)
6. Beginning in March, clues about the geography and culture of each site
will be included with the weekly data reports. On April 27, 2001, students will race
to tell us where they think the 10 Mystery Classes are located.
7. May will be "Meet the Mystery Class Month". Each Mystery Class
will introduce themselves on-line and you'll have a chance to correspond with them....whoever
and wherever they are!
Have fun and good luck!
Teacher Tip--It Takes Teamwork!
Attempting to locate the Mystery Classes is one of the most integrated components
of Journey North. Take a look at Wisconsin Teacher, and member of Journey North's
Teacher-Advisory Board, Cathie Plaehn's suggestions for how to organize your class:
We always welcome tips from practicing Journey North teachers. Please share your
The Next Mystery Class Update Will be Posted on February 9, 2001.
Copyright 2001 Journey North. All Rights Reserved. Please send
all questions, comments, and suggestions to our feedback form