An old usage of the word meaning "equipment" or "necessary stuff".
Definition of tackle… to seize, take hold of, or grapple with especially with the intention of stopping or subduing.

Opening the tackle box

This TACKLE BOX provides information and tools for tackling (stopping, subduing, and moving beyond) child sponsorship. The materials in this tackle box are presented at a level suitable for everyone — whether you are a teacher, a high school student, a parent, or simply a member of the general public who is looking for a critical and reflective response to global injustices and inequities.

The tackle box consists of 4 drawers, each having an explicit focus question. Within each drawer, the contents are further organized into compartments according to the following structure:

Response overview

a brief summary of the drawer’s contents

Research voices

a collection of research voices in the form of text, audios and videos presented as responses to a series of sub-questions

Resource guide

a list of materials (academic and non-academic, text and video) that can be consulted to learn more