5. Practice Marking 90° Lines

Objective:

Students will use a square tool (such as a speed square or combination square) to draw precise 90° lines—essential in almost all woodworking projects.

Materials Needed:

  • Pencil

  • Ruler or measuring tape

  • Speed square or combination square

  • Paper or small pieces of wood

  • Flat work surface

Instructions:

1. Start with a straight edge (the side of your paper or a wood scrap).

2. Place the square tool against the edge so one arm sits flush.

3. Use a pencil to draw a line along the other arm of the square—this creates a 90° angle.

4. Repeat at different points and on different surfaces to build confidence.

Skills Reinforced:

  • Understanding right angles

  • Tool positioning and handling

  • Accuracy in layout work

  • Preparing for real project cuts

✏️ Student Practice Area

Use this space to draw several 90° angles using your square tool.