A leveling tool having: a body, including a first face and an opposite second face, the first and second faces defining a thickness between them, the body defining a first side surface, a second side surface opposite said first side surface, a first end surface, and a second end surface substantially opposite said first end surface; at least one level indicator disposed within the thickness; and a clip removably attachable to each of the first and second faces.

A right angle graphing template useful for teaching students of various grade levels mathematical concepts, including concepts related to algebra and calculus. The template has first and second elongated ruler portions oriented perpendicular to one another and connected at an end to form a right angle. Each ruler portion has an inside scribing edge and a parallel outside scribing edge. A linear marking is placed within each ruler portion between and parallel to the inside and outside scribing edges. A vertex port is then placed at the point of intersection of the two linear markings. Finally, each ruler portion has a series of cross-markings perpendicular to the respective linear markings. The right angle graphing template allows the math student to quickly and accurately identify corresponding values in the domain and range of a function. This, in turn, assists students in learning mathematical principles such as rate-of-change which are demonstrated graphically.

A plumb bob bracket is disclosed for use in building construction having a first stud wall and a second stud wall each having an upper beam, a lower beam, and a plurality of vertical beams therebetween. The plumb bob bracket includes a first leg, a second leg attached to the first leg at an angle, a plumb bob attached to the plumb bob bracket by a string, wherein the first leg comprises a first flat panel and a second flat plat panel attached to the first flat panel at a right angle, and a bar member attached to the first flat panel at one end and the third flat panel at a second end.