| sameside | Extras.Geometry |
| SansSerif | Standard, Standard.Debug, Standard.Pipes |
| saturation | Standard, Standard.Debug, Standard.Pipes |
| save | Extras.Stamp |
| saw | Standard, Standard.Debug, Standard.Pipes |
| scale | Standard.Pipes |
| scaled | Lessons.Logic, Standard, Standard.Debug, Standard.Pipes |
| scaledPoint | Standard, Standard.Debug, Standard.Pipes |
| scaledVector | Standard, Standard.Debug, Standard.Pipes |
| Script | Extras.Animation |
| scriptOf | Extras.Animation |
| secondOfPair | Standard, Standard.Debug, Standard.Pipes |
| sector | Standard, Standard.Debug, Standard.Pipes |
| segments | Extras.SimUL1 |
| selected | Standard, Standard.Debug, Standard.Pipes |
| selectedKeys | Standard, Standard.Debug, Standard.Pipes |
| selectedValues | Standard, Standard.Debug, Standard.Pipes |
| sequential | Extras.Animation |
| Serif | Standard, Standard.Debug, Standard.Pipes |
| set | Standard, Standard.Debug, Standard.Pipes |
| setConversion | Extras.Widget |
| seth | Extras.Turtle |
| sethome | Extras.Turtle |
| setLabel | Extras.Widget |
| setLocation | Extras.Widget |
| setRawValue | Extras.Widget |
| setUpdate | Extras.Widget |
| setValue | Extras.Widget |
| setxy | Extras.Turtle |
| shifted | Extras.Animation |
| shortlived | Extras.Animation |
| showBetween | Standard, Standard.Debug, Standard.Pipes |
| showPoint | Extras.Geometry |
| showpoint | Extras.Geometry |
| showPointsLabels | Extras.Geometry |
| shuffled | Standard, Standard.Debug, Standard.Pipes |
| signum | Standard, Standard.Debug, Standard.Pipes |
| simultaneous | Extras.Animation |
| sin | Standard, Standard.Debug, Standard.Pipes |
| slider | Extras.Widget |
| slides | Extras.Examples |
| slideshow | |
| 1 (Function) | Extras.Cw |
| 2 (Function) | Standard.Debug |
| slowend | Extras.Animation |
| slowstart | Extras.Animation |
| snap | Extras.SnapBlock |
| SnapBlock | Extras.SnapBlock |
| snapBlock | Extras.SnapBlock |
| snapNtwist | Extras.SnapBlock |
| snapped | Extras.SnapBlock |
| solidBlock | Extras.SnapBlock |
| solidCircle | Lessons.Logic, Standard, Standard.Debug, Standard.Pipes |
| solidClosedCurve | Standard, Standard.Debug, Standard.Pipes |
| solidDashedCircle | Lessons.Bear |
| solidPolygon | Lessons.Logic, Standard, Standard.Debug, Standard.Pipes |
| solidPolygons | Extras.Turtle |
| solidRectangle | Lessons.Logic, Standard, Standard.Debug, Standard.Pipes |
| solve | Extras.Game.Hanoi |
| solveWith | Extras.Game.Hanoi |
| solve_circles | Extras.Geometry |
| solve_circles_easy | Extras.Geometry |
| solve_circles_hard | Extras.Geometry |
| solve_circles_medium | Extras.Geometry |
| solve_lines | Extras.Geometry |
| solve_lines_standard | Extras.Geometry |
| solve_line_centeredcircle | Extras.Geometry |
| solve_line_circle | Extras.Geometry |
| solve_quadratic | Extras.Geometry |
| sorted | Standard, Standard.Debug, Standard.Pipes |
| speedup | Extras.Animation |
| sprite | |
| 1 (Function) | Extras.Cw |
| 2 (Function) | Extras.Stamp |
| sprites | Extras.Stamp |
| sqrt | Standard, Standard.Debug, Standard.Pipes |
| squareFrame | Extras.Cw |
| squareRoot | Standard, Standard.Debug, Standard.Pipes |
| stamp | Extras.Stamp |
| stampDown | Extras.Stamp |
| stampLeft | Extras.Stamp |
| stampRight | Extras.Stamp |
| StampTrack | Extras.Stamp |
| stampUp | Extras.Stamp |
| StarPt | Extras.Geometry |
| start | Extras.Stamp |
| startsWith | Standard, Standard.Debug, Standard.Pipes |
| star_pt | Extras.Geometry |
| state | Extras.Game |
| static | Extras.Animation |
| staticMotion | Standard, Standard.Debug, Standard.Pipes |
| StdLine | |
| 1 (Type/Class) | Extras.Geometry |
| 2 (Data Constructor) | Extras.Geometry |
| stdline | Extras.Geometry |
| stop | Extras.Stamp |
| strobe_mindist | Extras.SimUL1 |
| strobe_period | Extras.SimUL1 |
| strobe_target | Extras.SimUL1 |
| styledLettering | Standard, Standard.Debug, Standard.Pipes |
| sub | Lessons.Operators |
| subsequences | Standard, Standard.Debug, Standard.Pipes |
| substitution | Standard, Standard.Debug, Standard.Pipes |
| substitutions | Standard, Standard.Debug, Standard.Pipes |
| sum | Standard, Standard.Debug, Standard.Pipes |