Elenco Electronics Snap Circuits Instruction Manual page 52

Project #466
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Meter Deflection (II)
OBJECTIVE: To build change the direction in which current
flows.
Compare this circuit to project 358, which has the LED positions
reversed. This changes the direction that current can flow. Press the
press switch (S2) and now the meter (M2) deflects to the left.
Project #467
Automatic Display #1
OBJECTIVE: Construct a light-controlled display.
Connect segments B & C to the circuit. Turn on the switch (S1), the display should
be off. Place your hand over the photo resistor (RP), now the number 1 lights.
Project #468
Automatic Display #2
OBJECTIVE: Light the number 2 using a light-controlled display.
Use the circuit from project 467. Connect A, B, G, E, & D to the circuit. Turn on the
switch (S1), the display should be off. Place your hand over the photo resistor (RP),
now the number 2 lights.